Allenylsilanes fonctionnels II. Synthese par voie organoaluminique du 2-trimethylsilylbuta-2,3-dienal et application a la synthese d'alcools secondaires α-alleniques trimethylsilyles

Article abstract of DOI:10.1016/0022-328X(92)80206-D

The 2-trimethylsilyl-2,3-butadienal is easily prepared, in good yield, by the reaction at -80 deg C between triethylorthoformate and the organoaluminum compound prepared from Me3SiC<*>C-CH2Br.The resulting conjugated aldehyde reacts readily with various organometallic compounds (containing Al, Mg, Zn) to produce alcohols resulting from an 1,2-addition only, but for the saturated or phenylic magnesium derivatives which also give products from 1,4-addition.