Cyclization and Rearrangements of Farnesol and Nerolidol Stereoisomers in Superacids
摘要:
Acid-catalyzed cyclization of 2,3-trans- and 2,3-cis-farensol proceeds regioselectively and stereospecifically, yielding drimenol and epi-drimenol, respectively. The trans and cis isomers of nerolidol undergo carbo- and heterocyclization reactions. The trans isomer gives tricyclic caged hydrocarbons with new skeletal types, while the rearrangements of the cis isomer produce derivatives of 2-oxabicyclo-[4.4.0]decane. The ICAR computer program was used to derive reasonable mechanisms for the acid-catalyzed transformations of nerolidol, and the probability of the mechanisms was evaluated by the molecular mechanics method.
Cyclization and Rearrangements of Farnesol and Nerolidol Stereoisomers in Superacids
摘要:
Acid-catalyzed cyclization of 2,3-trans- and 2,3-cis-farensol proceeds regioselectively and stereospecifically, yielding drimenol and epi-drimenol, respectively. The trans and cis isomers of nerolidol undergo carbo- and heterocyclization reactions. The trans isomer gives tricyclic caged hydrocarbons with new skeletal types, while the rearrangements of the cis isomer produce derivatives of 2-oxabicyclo-[4.4.0]decane. The ICAR computer program was used to derive reasonable mechanisms for the acid-catalyzed transformations of nerolidol, and the probability of the mechanisms was evaluated by the molecular mechanics method.
Polovinka, M. P.; Unzur, N. D.; Perutskii, V. B., Journal of Organic Chemistry USSR (English Translation), 1991, vol. 27, # 10, p. 1871 - 1885
作者:Polovinka, M. P.、Unzur, N. D.、Perutskii, V. B.、Korchagina, D. V.、Gatilov, Yu. V.、et al.
DOI:——
日期:——
Cyclization and Rearrangements of Farnesol and Nerolidol Stereoisomers in Superacids
作者:Marina P. Polovinka、Dina V. Korchagina、Yurii V. Gatilov、Irina Y. Bagrianskaya、Vladimir A. Barkhash、Victor B. Perutskii、Nikon D. Ungur、Pavel F. Vlad、Vladimir V. Shcherbukhin、Nikolai S. Zefirov
DOI:10.1021/jo00085a044
日期:1994.3
Acid-catalyzed cyclization of 2,3-trans- and 2,3-cis-farensol proceeds regioselectively and stereospecifically, yielding drimenol and epi-drimenol, respectively. The trans and cis isomers of nerolidol undergo carbo- and heterocyclization reactions. The trans isomer gives tricyclic caged hydrocarbons with new skeletal types, while the rearrangements of the cis isomer produce derivatives of 2-oxabicyclo-[4.4.0]decane. The ICAR computer program was used to derive reasonable mechanisms for the acid-catalyzed transformations of nerolidol, and the probability of the mechanisms was evaluated by the molecular mechanics method.