Category: 110-70-3

A balanced equation for a chemical reaction indicates what is reacting and what is produced, but it reveals nothing about how the reaction actually takes place. 110-70-3, The reaction mechanism is the process, or pathway, by which a reaction occurs.110-70-3. An updated downstream synthesis route of 110-70-3 as follows.

To a stirred solution of N,N’-dimethylethylenediamine (25.0 g, 0.28 mol) in 150 mL of dry diethyl ether was added diethyl oxalate (38.5 mL, 0.28 mol) in one portion. After a few minutes white crystals started to precipitate. The reaction mixture was stirred at room temperature overnight. The product was filtered and washed with dry diethyl ether. The product was dried under vacuum at 47 C overnight to give colorless crystals (38.64 g, 96%). ?H NMR (200 MHz, CDCl3, delta) : 3.50 (s, 4H), 2.99 (s, 6H). ?3C {?H} (200 MHz, CDCI3, delta): 157.35, 45.91, 34.74.

A chemical reaction often occurs in steps, although it may not always be obvious to an observer. Thank you very much for taking the time to read this article. If you are also interested in other aspects of 110-70-3, you can also browse my other articles.

Reference£º
Patent; GEORGIA TECH RESEARCH CORPORATION; WO2005/123754; (2005); A2;,
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

110-70-3, The molecularity of an elementary reaction is the number of molecules that collide during that step in the mechanism. If there is only a single reactant molecule in an elementary reaction, that step is designated as unimolecular. 110-70-3, name is N1,N2-Dimethylethane-1,2-diamine. A new synthetic method of this compound is introduced below.

EXAMPLE 12 N-Boc-N,N’-dimethylethylene diamine N,N’-dimethyl ethylenediamine (8.8 g) was dissolved in 200 ml tetrahydrofuran and to this was added over a 10 min period di-t-butyldicarbonate (4.36 g) in 30 mL tetrahydrofuran. 72 hours later, the solvent was evaporated and the residue partitioned between ether and KHCO3 and the organic layer was dried (MgSO4) and evaporated to give 11.6 g title compound (58% yield). 300 MHz 1 H NMR was consistent with proposed structure.

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Patent; G. D. Searle & Co.; US4902706; (1990); A;,
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

The molecularity of an elementary reaction is the number of molecules that collide during that step in the mechanism. 110-70-3, If there is only a single reactant molecule in an elementary reaction, that step is designated as unimolecular. 110-70-3, name is N1,N2-Dimethylethane-1,2-diamine. A new synthetic method of this compound is introduced below.

Synthesis of [N,N?-Dimethyl-N,N?-bis-(pyridine-2-ylmethyl)-1,2-diaminoethane] was taken from a previously reported procedure [16]. 2-(chloromethyl)pyridine hydrochloride (1.501 g, 9.15 mmol) dissolved in 5 mL deionized (DI) water was added dropwise to an aqueous solution containing K2CO3 (2.556 g, 18.49 mmol) dissolved in 7.5 mL DI water. The resulting mixture was stirred for 30 min. The mixture was extracted with CH2Cl2 (3¡Á10 mL). The organic phase was collected and dried with anhydrous Na2SO4. The dried solution was concentrated in vacuo to afford orange oil. A solution containing N,N?-dimethylethylenediamine (0.471 mL, 4.38 mmol) in 15 mL CH2Cl2 was added dropwise to the aforementioned orange oil dissolved in 5 mL CH2Cl2. An aqueous solution containing NaOH (0.311 g, 7.78 mmol) dissolved in 7.6 mL DI water was slowly added to organic mixture and stirred at room temperature. After 60 h, a second portion of NaOH solution(0.318 g, 7.95 mmol) was quickly added to the mixture. The combined mixture was extracted with CH2Cl2 (3¡Á20 mL) and dried with anhydrous Na2SO4. The organic solution was concentrated in vacuo to afford a brown oil, BPMEN (Yield: 0.631 g, 2.33 mmol, 70%) 1H NMR(500 MHz, CD2Cl2) delta 8.46 (dt, 2H, pyridine ring), 7.80 (m, 2H, pyridinering), 7.51 (m, 2H, pyridine ring), 7.30 (m, 2H, pyridine ring), 3.70 (m,4H, -CH2), 2.66 (m, 4H, -CH2), 2.27 (s, 6H, -CH3). ESI-MS (MeOH).Observed m/z 271.25 [BPMEN+H+] (z=1); simulated m/z 271.19.

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Reference£º
Article; Pella, Bruce J.; Niklas, Jens; Poluektov, Oleg G.; Mukherjee, Anusree; Inorganica Chimica Acta; vol. 483; (2018); p. 71 – 78;,
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

110-70-3, Rate laws may be derived directly from the chemical equations for elementary reactions. This is not the case, however, for ordinary chemical reactions.110-70-3, name is N1,N2-Dimethylethane-1,2-diamine, below Introduce a new synthetic route.

Preparation of Methyl-(2-methylamino-ethyl)-carbamic acid tert-butyl esterTo an ice-cooled solution of N,N’-dimethyethylenediamine (10 ml_, 91.0 mmol) in dry THF (150 ml.) was added a solution of BoC2O (4.97 g, 22.8 mmol) in dry THF (50 ml.) over 30 minutes. The reaction mixture was stirred for 1 h at 00C then at rt overnight, and concentrated in vacuo. The resulting residue was taken up in a mixture of EA and a sat.NH4CI solution. The organic layer was separated, washed with brine, dried (MgSO4), filtered and concentrated under reduced pressure. FC (10 % MeOH in DCM) afforded the title compound as a yellow oil (2.90 g, 17%). LC-MS (analytic A, Zorbax SB-AQ column, acidic conditions): tR = 0.50 min; [M+H]+ 189.40.

110-70-3, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,110-70-3 ,N1,N2-Dimethylethane-1,2-diamine, other downstream synthetic routes, hurry up and to see

Reference£º
Patent; ACTELION PHARMACEUTICALS LTD; AISSAOUI, Hamed; BOSS, Christoph; CORMINBOEUF, Olivier; FRANTZ, Marie-Celine; GRISOSTOMI, Corinna; WO2010/58353; (2010); A1;,
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

110-70-3, A balanced equation for a chemical reaction indicates what is reacting and what is produced, but it reveals nothing about how the reaction actually takes place. The reaction mechanism is the process, or pathway, by which a reaction occurs.19132-06-0. An updated downstream synthesis route of 110-70-3 as follows.

The compound N,N’-dimethylethylenediamine (20 g, 0.226 mol)Soluble in 100mL of dichloromethane,50 mL of Boc anhydride (14.8 g, 0.068 mol) was added dropwise in an ice water bath.Dichloromethane mixture,Drop the room temperature reaction,The progress of the reaction was monitored by TLC (DCM: MeOH = 10:1). filter,The dry filtrate was concentrated under reduced pressure at 40 C.After the column, the product was 9g.

There are, however, a few established termolecular elementary reactions. The reaction of nitric oxide with oxygen appears to involve termolecular steps. you can also browse my other articles about 110-70-3 if you are interested.

Reference£º
Patent; Sichuan Bai Li Pharmaceutical Co., Ltd.; Zhu Yi; Li Jie; Wan Weili; Zhuo Shi; Li Gangrui; (28 pag.)CN109106951; (2019); A;,
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

The molecularity of an elementary reaction is the number of molecules that collide during that step in the mechanism. 110-70-3, If there is only a single reactant molecule in an elementary reaction, that step is designated as unimolecular. 110-70-3, name is N1,N2-Dimethylethane-1,2-diamine. A new synthetic method of this compound is introduced below.

a 1,3-Dimethyl-2-(2-thienyl)-imidazolidine 23.5 g (267 mmol) of N,N’-dimethylethylenediamine were dissolved in 300 ml of toluene and treated with 29.8 g (266 mmol) of thiophene-2-carbaldehyde. The clear mixture was refluxed for 4 hours using a Dean-Stark trap. After that time 4.9 ml of water had separated in the trap. After cooling, the solution was filtered and evaporated. The oily residue was destined in vacuo. Yield: 45 g. Boiling point: 65 C. (0.1 mm Hg).

Thank you very much for taking the time to read this article. If you are also interested in other aspects of 110-70-3, you can also browse my other articles.

Reference£º
Patent; Aventis Pharma Deutschland GmbH; Genentech, Inc.; US6566366; (2003); B1;,
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

110-70-3, Rate laws may be derived directly from the chemical equations for elementary reactions. This is not the case, however, for ordinary chemical reactions.110-70-3, name is N1,N2-Dimethylethane-1,2-diamine, below Introduce a new synthetic route.

Step 1 : To a solution of N,N’-dimethylethylenediamine (300 mg) in DMF (2.0 mL) was added K2C03 ( 1.0 g) and compound B (466 mg). The mixture was heated at 80C for 3h. Solvent was evaporated and the residue was extracted with DCM and then purified by a prep-TLC plate(10%MeOH/DCM with 1% NH3 in methanol) to give product as a yellow solid (400 mg, yield 75%).

110-70-3, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,110-70-3 ,N1,N2-Dimethylethane-1,2-diamine, other downstream synthetic routes, hurry up and to see

Reference£º
Patent; ARIAD PHARMACEUTICALS, INC.; DALGARNO, David, C.; HUANG, Wei-sheng; SHAKESPEARE, William, C.; WANG, Yihan; ZHU, Xiaotian; WO2012/151561; (2012); A1;,
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

110-70-3, The molecularity of an elementary reaction is the number of molecules that collide during that step in the mechanism. If there is only a single reactant molecule in an elementary reaction, that step is designated as unimolecular.110-70-3, name is N1,N2-Dimethylethane-1,2-diamine. A new synthetic method of this compound is introduced below.

A single-neck RBFequipped with a magnetic stirrer was charged with methyl2-bromo-2-(4-nitrophenyl)acetate (3,7.33 g, 26.74 mmol) and EtOH (80 mL). After cooling to 0 C in an ice/waterbath. N,N?-dimethylethane-1,2-diamine (23 g, 0.26 mol) was added to the solution over 5 min. Theresulting solution was stirred at 0 C to 25 C overnight. After evaporation invacuo, the crude mixturewas purified on a silica gel column (MeOH: DCM = 10: 90) to afford compound 4 as a yellow solid (6.70 g, 100%).

This molecular description is the mechanism of the reaction; it describes how individual atoms, ions, or molecules interact to form particular products.If you are interested, you can also browse other articles of N1,N2-Dimethylethane-1,2-diamine, We look forward to the emergence of more reaction modes in the future.

Reference£º
Article; Young, Wendy B.; Barbosa, James; Blomgren, Peter; Bremer, Meire C.; Crawford, James J.; Dambach, Donna; Gallion, Steve; Hymowitz, Sarah G.; Kropf, Jeffrey E.; Lee, Seung H.; Liu, Lichuan; Lubach, Joseph W.; Macaluso, Jen; Maciejewski, Pat; Maurer, Brigitte; Mitchell, Scott A.; Ortwine, Daniel F.; Di Paolo, Julie; Reif, Karin; Scheerens, Heleen; Schmitt, Aaron; Sowell, C. Gregory; Wang, Xiaojing; Wong, Harvey; Xiong, Jin-Ming; Xu, Jianjun; Zhao, Zhongdong; Currie, Kevin S.; Bioorganic and Medicinal Chemistry Letters; vol. 25; 6; (2015); p. 1333 – 1337;,
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

The molecularity of an elementary reaction is the number of molecules that collide during that step in the mechanism. If there is only a single reactant molecule in an elementary reaction, that step is designated as unimolecular.110-70-3, name is N1,N2-Dimethylethane-1,2-diamine. A new synthetic method of this compound is introduced below. , 110-70-3

A mixture of 2-(3-bromo-phenyl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid (600 mg, 1.7 mmol), N,N’-dimethyl-ethane-1,2-diamine (0.37 mL, 3.4 mmol), copper(I) iodide (96 mg, 0.5 mmol), N,N-dimethylglycine hydrochloride (140 mg, 1.0 mmol) and potassium carbonate (923 mg, 6.7 mmol) in dimethyl sulfoxide (5 mL) was stirred at 120 C. for 16 h. Then the reaction mixture cooled to room temperature. The reaction mixture was extracted with ethyl acetate (2¡Á150 mL), washed with water (2¡Á50 mL) and saturated aqueous ammonium chloride solution (2¡Á50 mL), dried over anhydrous sodium sulfate and then concentrated in vacuo. Purification by Waters automated flash system (column: Xterra 30 mm¡Á100 mm, sample manager 2767, pump 2525, detector: ZQ mass and UV 2487, solvent system: acetonitrile and 0.1% ammonium hydroxide in water) afforded 3,3-dimethyl-2-{3-[methyl-(2-methylamino-ethyl)-amino]-phenyl}-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid (500 mg, 80%) as a white solid: LC/MS m/e calcd for C22H29N3O2 (M+H)+: 368.50, observed: 368.1.

This molecular description is the mechanism of the reaction; it describes how individual atoms, ions, or molecules interact to form particular products.If you are interested, you can also browse other articles of N1,N2-Dimethylethane-1,2-diamine, We look forward to the emergence of more reaction modes in the future.

Reference£º
Patent; Chen, Li; Feng, Lichun; Huang, Mengwei; Liu, Yongfu; Wu, Guolong; Wu, Jim Zhen; Zhou, Mingwei; US2011/257151; (2011); A1;,
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

110-70-3, Rate laws may be derived directly from the chemical equations for elementary reactions. This is not the case, however, for ordinary chemical reactions.110-70-3, name is N1,N2-Dimethylethane-1,2-diamine, below Introduce a new synthetic route.

A solution of di-tert-butyl dicarbonate (4.95 g, 22.69 mmol) in CH2Cl2 (240 mL) was added dropwise to a stirred solution of N,N?-dimethylethane-1,2-diamine (4 g, 45.38 mmol) in CH2Cl2 (80 mL) over a period of 20h. The resulting mixture was stirred at r.t. for 3h. The mixture was then washed sequentially with sat. Na2CO3 (2 x 100 mL), water (50 mL), and sat. brine (50 mL). The organic solution was dried (MgSO4) and concentrated in vacuo. Purification by FCC, eluting with 0-10% CH3OH in CH2Cl2 gave the title compound (2.177 g, 51%) as a pale yellow oil; 1H NMR: 1.40 (9H, s), 2.28 (3H, s), 2.57 (2H, t), 2.79 (3H, s), 3.20 (2H, t).

110-70-3, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,110-70-3 ,N1,N2-Dimethylethane-1,2-diamine, other downstream synthetic routes, hurry up and to see

Reference£º
Patent; ASTRAZENECA AB; ASTRAZENECA UK LIMITED; BUTTERWORTH, Sam; FINLAY, Maurice, Raymond, Verschoyle; WARD, Richard, Andrew; KADAMBAR, Vasantha, Krishna; CHANDRASHEKAR, Reddy, C.; MURUGAN, Andiappan; REDFEARN, Heather, Marie; WO2013/14448; (2013); A1;,
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis