Chemistry, like all the natural sciences, begins with the direct observation of nature¡ª in this case, of matter.7693-46-1, Name is 4-Nitrophenyl chloroformate, SMILES is O=C(Cl)OC1=CC=C([N+]([O-])=O)C=C1, belongs to chiral-nitrogen-ligands compound. In a document, author is Clement, Helen A., introduce the new discover, Formula: C7H4ClNO4.
Synthesis of alpha-hydroxyalkyl dehydroazepanes via catalytic enantioselective borylative migration of an enol nonaflate
A Pd-catalyzed borylative migration methodology for cyclic enol perfluorosulfonates was applied to the synthesis of the corresponding 7-membered, azepane ring system. Throughout the optimization, it was shown that the reaction is sensitive to the nitrogen protecting group as well as the type of base and solvent. The resulting cyclic allylboronate reacts stereoselectively with aldehydes for the synthesis of novel alpha-hydroxyalkyl dehydroazepanes in good yield and enantioselectivity over two steps. We highlight the utility of this methodology with an efficient synthesis of the de novo 7-membered ring analogue of the piperidine alkaloid beta-conhydrine. (C) 2018 Elsevier Ltd. All rights reserved.
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions. you can also check out more blogs about 7693-46-1. Formula: C7H4ClNO4.
Reference:
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