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- W2949621144 abstract "The naturally occurring sesquiterpene (±)-cuparene [1,1,2-trimethyl-2-(4-methylphenyl)cyclopentane], which contains two contiguous quaternary centers, is produced in good yield by 5-exo-trig cyclization of the 5-hexenyllithium (2) generated from 6-iodo-3,3-dimethyl-2-(4-methylphenyl)-1-hexene (3) by low temperature lithium - iodine exchange. In contrast, radical mediated cyclization of 3 proceeds via the 6-endotrig mode to give 1,1-dimethyl-2-(4-methylphenyl)cyclohexane." @default.
- W2949621144 created "2019-06-27" @default.
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- W2949621144 date "1991-09-01" @default.
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- W2949621144 title "Construction of a sterically congested carbon framework via 5-hexenyllithium cyclization. Synthesis of (±)-cuparene." @default.
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- W2949621144 doi "https://doi.org/10.1016/s0040-4020(01)81931-1" @default.
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