Synthesis of new boron analogues of cyclic carboxylic α-amino acids using ring-closing metathesis reactions
摘要:
Ruthenium catalyzed ring-closing metathesis has been used as a key step for the synthesis of cyclic alpha-aminoboronic esters as, for example, boron-containing mimics of pipecolic, 2-azepanecarboxylic acid or baikiain. (C) 2004 Elsevier Ltd. All rights reserved.
Nickel-Catalyzed Umpolung Arylation of Ambiphilic α-Bromoalkyl Boronic Esters
作者:Shang-Zheng Sun、Ruben Martin
DOI:10.1002/anie.201712428
日期:2018.3.26
A nickel‐catalyzed reductive arylation of ambiphilic α‐bromoalkyl boronic esters with aryl halides is described. This platform provides an unrecognized opportunity to promote the catalytic umpolung reactivity of ambiphilic reagents with aryl halides, thus unlocking a new cross‐coupling strategy that complements existing methods for the preparation of densely functionalized alkyl‐substituted organometallic
Ruthenium catalyzed ring-closing metathesis has been used as a key step for the synthesis of cyclic alpha-aminoboronic esters as, for example, boron-containing mimics of pipecolic, 2-azepanecarboxylic acid or baikiain. (C) 2004 Elsevier Ltd. All rights reserved.