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Synthese von Fulvenen über 1‐Chloralkyl‐acetate
Author(s) -
Neuenschwander Markus,
Iseli Rudolf
Publication year - 1977
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.19770600331
Subject(s) - fulvene , fulvenes , chemistry , alkyl , chlorine , chlorine atom , organic chemistry , medicinal chemistry , polymer chemistry
Synthesis of fulvenes via 1‐chloroaklyl‐acetates The synthesis of fulvenes (5) via l‐chloroalkyl acetates (3) is extended to 6‐alkyl‐fulvenes with branched side‐chains, to 6‐phenylfulvene (5f) and 6‐(2‐furyl)fulvene (5g) , as well as to 6‐vinylfulvenes ( 5h and 5i ) containing chlorine and acetoxy‐substituents in ω‐position. The reaction is carried out at low temperature under water‐free conditions. The purification of the reaction products is simple. ‐ An improved procedure for the preparation of pure fulvene ( 5a , R=R′=H) is reported.