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A novel reaction between 2-aryl-1-nitro-1-alkenes and trialkylgallium compounds via NO 2 /alkyl substitution is found, and a possible mechanism is propose.
Diorganoditellurides 1 (1a R = n-Bu; 1b R = Ph), by treated with sodium borohydride, reacted with propargylaldehyde to give corresponding β-(organotelluro)acroleins 2 with high (Z)-stereoselectivity in good yields (2a: Z : E = 89 : 11; 2b: pure Z--isomer); Tellurides 3, on treatment with n-BuLi, reacted with carbonyl compounds to afford conjugated dienols with retention of olefin geometry in high...
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