Acetonyltriphenylphosphonium bromide and its polymer-supported analogues as catalysts in protection and deprotection of alcohols as alkyl vinyl ethers
作者:Yung-Son Hon、Chia-Fu Lee、Rong-Jiunn Chen、Ping-Hui Szu
DOI:10.1016/s0040-4020(01)00558-0
日期:2001.7
the protection of alcohols as THP, THF, and EE ethers as well as the cleavage of THP, THF, and EE ethers to the corresponding alcohols. They could be applied to 1°, 2° and 3° alcohols, phenol and acid-labile alcohols. Both ATPB and catalyst A are excellent catalysts in the present study. It needed only 1×10−2–1.25×10−2 mol equiv. of the polymer-supported catalyst A in the reactions.
乙炔基三苯基溴化((ATPB,1)和聚对苯乙烯基二苯基乙yl基溴化((A)都是有效的催化剂,可保护醇(如THP,THF和EE醚)以及将THP,THF和EE醚裂解为相应的醇酒精。它们可用于1°,2°和3°的醇,苯酚和酸不稳定的醇。在本研究中,ATPB和催化剂A都是极好的催化剂。它仅需要1×10 -2 –1.25×10 -2 摩尔当量。反应中聚合物负载的催化剂A的量。