Synthesis of N-Boc-protected 1-amino-3-alken-2-ols from allylic carbamates via palladium(II)-catalyzed oxidative cyclization
摘要:
Methyl glyoxylate adducts of N-Boc-protected allylic amines cyclize in the presence of catalytic Pd(OAc)2 and excess Cu(OAc)2 in DMSO to 5-(1-alkenyl)-2-(methoxycarbonyl)oxazolidines. These heterocycles are readily converted to unsaturated N-Boc-protected beta-amino alcohols through anodic oxidation and mild hydrolysis.
Synthesis of N-Boc-protected 1-amino-3-alken-2-ols from allylic carbamates via palladium(II)-catalyzed oxidative cyclization
摘要:
Methyl glyoxylate adducts of N-Boc-protected allylic amines cyclize in the presence of catalytic Pd(OAc)2 and excess Cu(OAc)2 in DMSO to 5-(1-alkenyl)-2-(methoxycarbonyl)oxazolidines. These heterocycles are readily converted to unsaturated N-Boc-protected beta-amino alcohols through anodic oxidation and mild hydrolysis.
Palladium(II)-catalysed oxidation of allylic amines with molecular oxygen
作者:Rolf A. T. M. van Benthem、Henk Hiemstra、Jasper J. Michels、W. Nico Speckamp
DOI:10.1039/c39940000357
日期:——
The palladium(II)-catalysedoxidative cyclization of the adducts of N-Boc-protected allylic amines with methyl glyoxylate proceeds well in the presence of molecular oxygen as the stoichiometric oxidant without the need of a co-oxidant, if Me2SO is used as the solvent.
如果使用Me 2 SO ,则在分子氧作为化学计量氧化剂的情况下,钯(II)催化N -Boc保护的烯丙基胺与乙醛酸甲酯加合物的氧化环化反应进行得很好。作为溶剂。
Hiemstra, Henk; Benthem, Rolf A. T. M. van, Bulletin des Societes Chimiques Belges, 1994, vol. 103, # 9-10, p. 559 - 564
作者:Hiemstra, Henk、Benthem, Rolf A. T. M. van
DOI:——
日期:——
Synthesis of N-Boc-protected 1-amino-3-alken-2-ols from allylic carbamates via palladium(II)-catalyzed oxidative cyclization
作者:Rolf A. T. M. Van Benthem、Henk Hiemstra、W. Nico Speckamp
DOI:10.1021/jo00049a001
日期:1992.11
Methyl glyoxylate adducts of N-Boc-protected allylic amines cyclize in the presence of catalytic Pd(OAc)2 and excess Cu(OAc)2 in DMSO to 5-(1-alkenyl)-2-(methoxycarbonyl)oxazolidines. These heterocycles are readily converted to unsaturated N-Boc-protected beta-amino alcohols through anodic oxidation and mild hydrolysis.