Ring-closing of 1,7-and 1,8-enynes of propargylic O,O-acetals by ruthenium-catalysed intramolecular metathesis
Acyclic 1,7-and 1,8-enynes with the alkyne moiety directly connected to the asymmetric carbon of an ethyl acetal have been obtained in two steps from the corresponding aldehydes. Ring-closing metathesis of these enynes delivered the corresponding six-and
Lanfranchi, Don Antoine,Bour, Christophe,Boff, Bastien,Hanquet, Gilles
experimental part
p. 5232 - 5247
(2010/11/02)
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