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[摘要]:An efficient method has been developed for the Barbier-Grignard-type alkylation reaction of aldehydes (including aliph. version) using unactivated alkyl halides in water in the presence of an In/CuI/I2 or In/AgI/I2 system. The reactions proceeded more efficiently in water than in org. solvent. In, CuI or AgI, and I2 were all essential for the efficient progress of the reactions. A radical-type reaction mechanism was studied and proposed by using 4-pentenal as substrate. |
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