Mild and Tunable Benzoic Acid Catalysts for Rearrangement Reactions of Allylic Alcohols
摘要:
An efficient and simple catalytic method for the isomerization of readily prepared allylic alcohols is described. We focus particularly on cyclic examples and the synthesis of unusual enyne and dienols. The benzoic acid catalysts employed are commercially available and very inexpensive and can be tuned for reactivity and substrate sensitivity.
1,<i>n</i>-Rearrangement of Allylic Alcohols Promoted by Hot Water: Application to the Synthesis of Navenone B, a Polyene Natural Product
作者:Pei-Fang Li、Heng-Lu Wang、Jin Qu
DOI:10.1021/jo5004086
日期:2014.5.2
n-rearrangement (n = 3, 5, 7, 9) of allylic alcohols. In some cases, the rearrangement reactions joined isolated C–C double or triple bonds to generate conjugated polyene or enyne structure motifs. We used the 1,3-rearrangement reaction of an allylic alcohol in hot water as part of an attractive new strategy for construction of the polyene naturalproduct navenone B by iterative use of a Grignard reaction
Stereoselective aziridination of cyclic allylic alcohols using chloramine-T
作者:Susannah C. Coote、Peter O'Brien、Adrian C. Whitwood
DOI:10.1039/b811137e
日期:——
TsNClNa and t-BuSO(2)NClNa, BusNClNa) has been explored. The stereoselectivity of these reactions was highly dependent on the structure of the allylic alcohol and the chloramine salt. Generally, mixtures of cis- and trans-hydroxy aziridines were obtained, in which the major diastereomer was the cis-hydroxy aziridine, whilst complete cis-diastereoselectivity was observed in the aziridination of 1,3-disubstituted
作者:Richard C. Cambie、Diana M. Gash、Peter S. Rutledge、Paul D. Woodgate
DOI:10.1039/p19770001157
日期:——
Iodoacetoxylation of 3-t-butylcyclohexene with silver(I) acetate–iodine or thallium(I) acetate–iodine gives an ca. 3 : 1 mixture of t-2-iodo-t-3-t-butylcyclohexan-r-1-yl acetate and t-2-iodo-c-3-t-butylcyclohexan-r-1-yl acetate as the major products. The ratio is similar to that obtained for the major alcohols from reduction of the iodo-acetates with tri-n-butyltin hydride followed by lithium aluminium
Hirano, Masao; Morimoto, Takashi, Journal of the Chemical Society. Perkin transactions II, 1985, p. 1105 - 1108
作者:Hirano, Masao、Morimoto, Takashi
DOI:——
日期:——
Mild and Tunable Benzoic Acid Catalysts for Rearrangement Reactions of Allylic Alcohols
作者:J. Adam McCubbin、Samantha Voth、Oleg V. Krokhin
DOI:10.1021/jo201540p
日期:2011.10.21
An efficient and simple catalytic method for the isomerization of readily prepared allylic alcohols is described. We focus particularly on cyclic examples and the synthesis of unusual enyne and dienols. The benzoic acid catalysts employed are commercially available and very inexpensive and can be tuned for reactivity and substrate sensitivity.