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Carotinoidsynthesen über Sulfone; Synthese von Apocarotinoiden und Torularhodinester
Author(s) -
Fischli Albert,
Mayer Hans
Publication year - 1975
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19750580529
Subject(s) - chemistry , polyene , sulfone , allylic rearrangement , conjugated system , aryl , halide , alkylation , medicinal chemistry , organic chemistry , catalysis , alkyl , polymer
Abstract The alkylation of conjugated arylsulfonyl ylids, prepared from the corresponding allylic sulfones (2 or 8), and allylic halides bearing terminal carbonylgroups (3 or 4) leads to polyene sulfones which readily undergo spontaneous elimination of the corresponding aryl sulfinates. By this method two apocarotenoids (5 and 6) and torularhodin ethyl ester (9) have been prepared.