Oxidative carbon carbon bond cleavage reaction of 1,2-diamines and 1,2-amino alcohols under an oxygen atmosphere
摘要:
Under an atmosphere of oxygen 1,2-diamines underwent clean oxidative cleavage in the presence of BF3-OEt2 to give imines in good to excellent yields. 1,2-Amino alcohols were also cleaved under the same conditions to give imines and aldehydes in good yields. (C) 2001 Elsevier Science Ltd. All rights reserved.
Crossed Pinacol Coupling Reaction between Aldehydes and Imines:A Rapid Access to 1,2-Amino Alcohols
作者:Makoto Shimizu、Atsushi Iwata、Hiroaki Makino
DOI:10.1055/s-2002-33510
日期:——
In the presence of zinc, boron trifluoride etherate, and methyltrichlorosilane, aldehydes and imines underwent a crossed pinacol coupling reaction to give 1,2-amino alcohols in good to excellent yields.
Highly Chemoselective Crossed Imino Pinacol Coupling Reaction Using the Synergetic Effect of Boron Trifluoride Etherate and Trichloromethylsilane
作者:Makoto Shimizu、Ikuhiro Suzuki、Hiroaki Makino
DOI:10.1055/s-2003-41419
日期:——
Use of boron trifluoride etherate and trichloromethylsilane in the presence of zinc-copper couple effects a crossed imino pinacol coupling reaction to give 1,2-diamines in good yields with high diastereoselectivities.
Transition-metal free: The synthesis of imines from benzyl alcohol and anilines promoted by oxygen and KOtBu at room temperature in the absence of a transition metal catalyst is described. The detailed investigation of the radical mechanism is presented revealing complex reaction paths and branching patterns.
无过渡金属:描述了在室温下,在没有过渡金属催化剂的情况下,在氧气和 KO t Bu 的促进下,由苯甲醇和苯胺合成亚胺。对自由基机理的详细研究揭示了复杂的反应路径和分支模式。
Oxidative carbon carbon bond cleavage reaction of 1,2-diamines and 1,2-amino alcohols under an oxygen atmosphere
作者:Makoto Shimizu、Hiroaki Makino
DOI:10.1016/s0040-4039(01)01945-1
日期:2001.12
Under an atmosphere of oxygen 1,2-diamines underwent clean oxidative cleavage in the presence of BF3-OEt2 to give imines in good to excellent yields. 1,2-Amino alcohols were also cleaved under the same conditions to give imines and aldehydes in good yields. (C) 2001 Elsevier Science Ltd. All rights reserved.