Trifluoromethanesulfonic (triflic) acid catalyzed transformations of .alpha.-hydroxy carbonyl compounds
摘要:
Triflic acid catalyzed reaction of 2-hydroxy-2-adamantanecarboxylic acid results via ionizative decarbonylation in the formation of adamantonone. Under carbon monoxide pressure pinacol-type rearrangement gives 4,5-homoadamantanedione. Reaction of a series of alpha-hydroxy ketones result in fragmentation, deprotonation, and cyclization, respectively. The reactions and their suggested mechanism are discussed.
Synthesis of 2-alkyl (and aryl)-1-aryl-2-propen-1-ones via m-CPBA mediated oxidation of γ-(benzotriazol-1-yl)allylic selenides
作者:Taehoon Kim、Kyongtae Kim
DOI:10.1016/s0040-4039(02)00388-x
日期:2002.4
Treatment of 2-alkyl (and aryl)-3-aryl-3-(benotriazol-1-yl)allylic selenides with m-CPBA (1 equiv.) for 10 min in Ch(2)Cl(2) at rt gave 2-alkyl (and aryl)-1-aryl-2-propen-1-ones in excellent yields. (C) 2002 Published by Elsevier Science Ltd.
OLAH, GEORGE A.;WU, AN-HSIANG, J. ORG. CHEM., 56,(1991) N, C. 2531-2534
作者:OLAH, GEORGE A.、WU, AN-HSIANG
DOI:——
日期:——
HAYASHI MASAJI; MUKAIYAMA TERUAKI, CHEM. LETT.,(1987) N 2, 289-292
作者:HAYASHI MASAJI、 MUKAIYAMA TERUAKI
DOI:——
日期:——
Trifluoromethanesulfonic (triflic) acid catalyzed transformations of .alpha.-hydroxy carbonyl compounds
作者:George A. Olah、An Hsiang Wu
DOI:10.1021/jo00007a048
日期:1991.3
Triflic acid catalyzed reaction of 2-hydroxy-2-adamantanecarboxylic acid results via ionizative decarbonylation in the formation of adamantonone. Under carbon monoxide pressure pinacol-type rearrangement gives 4,5-homoadamantanedione. Reaction of a series of alpha-hydroxy ketones result in fragmentation, deprotonation, and cyclization, respectively. The reactions and their suggested mechanism are discussed.