Benzophenone reactions with boron stabilized carbanions

It was early reported that boron-stabilized carbanions reacted with benzaldehyde and ketones to yield alkenes (equation 40). The reaction gave a 45-50% yield in the one case quantified, with ( ) (Z) ratios varying over a wide range with temperature. Benzophenone gave a similar yield but the yields with aliphatic ketones were considerably less. °... 

In reactions with benzophenone and cyclohexanone the dialkoxyboiyl-stabilized carbanions still eliminate silicon but the dimesiQ lboryl derivatives eliminate boron and silicon competitively so that a mixture of products results. ... 

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See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

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