122750-84-9Relevant articles and documents
CARBACEPHEMS AND 4-METHYLENE-AZETIDIN-2-ONES BY COPPER-,EDIATED AMIDE NITROGEN-VINYLIC CARBON RING CLOSURE
Joyeau, R.,Kobaiter, R.,Sadet, J.,Wakselman, M.
, p. 337 - 340 (2007/10/02)
Treatment of N-alkyl or N-aryl 3-bromo-3-buteneamides undeer modified Ullman-Goldberg conditions results in the direct formation of highly strained N-substituted 4-methylene-azetidin-2-ones in fair to good yields.In the same manner, 4-(4'-bromobuten-3'-enyl) azetidinone derivatives provides carbacephems.