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Synthesis of Cyclic Compounds from Triphenyl(phenyliminovinylidene)phosphorane and Carboxylic Acids
Author(s) -
Bestmann Hans Jürgen,
Schade Gerold,
Schmid Günther
Publication year - 1980
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198008221
Subject(s) - phosphorane , ylide , wittig reaction , intramolecular force , chemistry , double bond , phosphorus , medicinal chemistry , organic chemistry
Intramolecular Wittig reactions to give hetero‐ and carbocycles (3)–(5) take place on treatment of the phosphorus ylide (1) with oxocarboxylic acids (2) . Some annelations to (5) are superior to other methods, partly because no double‐bond isomers are formed.