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3‐Bromo‐3‐methyl‐2‐trimethylsiloxy‐1‐butene—A New Cycloaddition Reagent
Author(s) -
Sakurai Hideki,
Shirahata Akihiko,
Hosomi Akira
Publication year - 1979
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.197901631
Subject(s) - isoprene , reagent , cycloaddition , chemistry , organic chemistry , medicinal chemistry , catalysis , copolymer , polymer
A facile entry to cycloheptenones and cyclopentanones is provided by the new cyclization reagent (1). Examples are the synthesis of Karahanaenone (2) from isoprene, and of(±)‐α‐cuparenone (4) , R = p ‐CH 3 C 6 H 4 , from 1‐isopropenyl‐4‐methylbenzene.
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