Organometallics p. 2105 - 2108 (1994)
Update date:2022-08-04
Topics:
Seyferth, Dietmar
Son, David Y.
Shah, Sejal
Triphenylallenyllead, which is easily prepared by reaction of the readily available Ph3PbMgBr (in situ, via 3 PhMgBr + PbCl2 in THF) with propargyl bromide, reacts with aldehydes in the presence of a Lewis acid (BF3·OEt2 or TiCl4) to give homopropargylic alcohols, RCH(OH)CH2C≡CH, in good yield. Propargylation of ketones requires transmetalation of PH3PbCH=C=CH2 with PhLi to CH2=C=CHLi and reaction of the latter with the ketone.
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Doi:10.1002/cjoc.202100005
(2021)Doi:10.1055/s-2003-42080
(2003)Doi:10.1016/S0020-1693(02)01520-7
(2003)Doi:10.1016/S0008-6215(00)83366-2
(1977)Doi:10.1002/chem.200304859
(2003)Doi:10.1021/ja01334a051
(1933)
