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pro vyhledávání: '"Hugh A. Hoather"'
Publikováno v:
Tetrahedron. 71:4124-4131
The cis-fused lactones were the major products isolated from Diels–Alder reactions of (2E,4E)-2,4-dimethylhexa-2,4-dienyl methyl fumarate and maleate and from the cyclisation of the all (E)-2,4,6,8-tetramethyldeca-2,4,6,8-tetraenyl methyl fumarate
Publikováno v:
ChemInform. 46
Both inter- and intramolecular Diels—Alder reactions of dienyl methyl fumarate [e.g. (I) and (III)] give cis-fused lactones with a methyl bearing quaternary centre as the major products because of the influence of the methyl substituent.