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1‐Ethoxy‐1,3‐butadiene durch Wittig‐Alkenylierung von 3‐Ethoxyacroleinen
Author(s) -
Potthoff Birgit,
Breitmaier Eberhard
Publication year - 1985
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19851181139
Subject(s) - chemistry , wittig reaction , alkoxy group , adduct , diene , alkyl , hydrolysis , maleic anhydride , medicinal chemistry , organic chemistry , copolymer , natural rubber , polymer
1‐Ethoxy‐1,3‐butadienes by Wittig Alkenylation of 3‐Ethoxyacroleins 2‐Alkyl‐1‐ethoxy‐1,3‐butadienes 3 as donor activated 1,3‐diene components for [4+2] cycloadditions are prepared by Wittig alkenylation of 2‐alkyl‐3‐ethoxyacroleins 1 . The title compounds react with maleic anhydride to give crystallized 2‐alkyl‐3‐ethoxy‐1‐cyclohexene‐4,5‐dicarboxylic acids 4 upon hydrolysis of the primary adduct.