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Cyclobutanone and Cyclobutenone Derivatives by Reaction of Tertiary Amides with Alkenes or Alkynes
Author(s) -
Falmagne JeanBernard,
Escudero José,
TalebSahraoui Sofia,
Ghosez Léon
Publication year - 1981
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.198108791
Subject(s) - cyclobutanone , alkyl , chemistry , aryl , medicinal chemistry , organic chemistry , ring (chemistry)
Cyclobutanones (1) and cyclobutenones (2) , R 1 and/or R 2 = alkyl, aryl, H , often used as synthetic building blocks, could be prepared from N , N ‐dialkylamides, trifluorome‐thanesulfonic acid anhydride and alkenes or alkynes in the presence of collidine. N , N ‐Dialkyl‐ N ‐alkylideneammonium(keteniminium) salts occur as intermediates.