6894-87-7Relevant academic research and scientific papers
Palladium-catalyzed cross-coupling of benzyl ketones and α,β- unsaturated carbonyl and phenolic compounds with o-dibromobenzenes to produce cyclic products
Terao, Yoshito,Satoh, Tetsuya,Miura, Masahiro,Nomura, Masakatsu
, p. 2345 - 2350 (2007/10/03)
A number of carbonyl and phenolic compounds efficiently couple with o- dibromobenzenes in the presence of a palladium catalyst and a base to give the corresponding oxygen-containing heterocycles or carbocyclic compounds. Thus, from the reactions of benzyl phenyl ketones, 1-naphthols, and α,β- unsaturated aldehydes and ketones, benzofuran, benzopyran, benzocyclobutane, and indene derivatives, respectively, are produced selectively via the successive formation of C-C and C-O bonds or of two C-C bonds.
Regioselective Ring Opening Reactions of 1-Aminocyclopropenes via Carbenium Ion and Carbene Intermediates
Yoshida, Hiroshi,Sano, Hiroe,Ogata, Tsuyoshi,Matsumoto, Kiyoshi
, p. 4341 - 4346 (2007/10/02)
The reaction of 1-(disubstituted amino)-2,3-diphenylcyclopropenium salt with phenyl- and alkylmagnesium halides afforded, regioselectively, 1-aminocyclopropenes in good yields.The reactions of these 1-aminocyclopropenes were studied under acidic and nonacidic conditions to yield regioselective ring-opening products (C2-C3 and C1-C3 bond fissions of the cyclopropene) associated with the carbenium ions and carbene intermediates, respectively.
