93579-08-9Relevant academic research and scientific papers
HIGHLY STEREOSELECTIVE SYNTHESES OF CONJUGATED E,E- AND E,Z-DIENES, E-ENYNES AND E-1,2,3-BUTATRIENES VIA ALKENYLBORANE DERIVATIVES
Negishi, Ei-ichi,Yoshida, Takao,Abramovitch, Akiva,Lew, George,Williams, Robert M.
, p. 343 - 356 (2007/10/02)
A highly selective and potentially general methodology for the synthesis of conjugated E,E- and E,Z-dienes, E-enynes, and E-1,2,3-butatrienes via hydroboration of alkynes is reported.The observed stereoselectivity was >98-99percent.
A REGIOSELECTIVE ENOLATE FORMATION OF TRIMETHYLSILYLMETHYL KETONES APPLICATION TO THE (E)-SELECTIVE SYNTHESIS OF α,β-UNSATURATED KETONES
Matsuda, Isamu,Okada, Hisashi,Sato, Susumo,Izumi,Yusuke
, p. 3879 - 3882 (2007/10/02)
Two possible enolate anions of trimethylsilylmethyl ketones have been prepared regioselectively by the appropriate choice of base.The one directed to the silylmethyl site behaves as a highly reactive and (E)-selective condensation reagent to aldehydes.
