Polymeric Organotin Dihydride Reagent as a Reducing Agent

5 Polymeric Organotin Dihydride Reagent as a Reducing Agent 

The versatility and selectivity of organotin hydride, is well documented. The use of polymeric organotin dihydride reagent involves ease of operation and reaction workup and avoids toxic vapours, characteristic of tin hydride. 

The polymer supported organotin dihydride reagent has been used ° for the conversion of aldehydes and ketones to alcohols in 80-90% yields and the reduction of halides to hydrocarbons. The use of organotin hydride for the reduction of alkyl and aryl halides in presence of other functional groups is generally superior to lithium aluminium hydride. This can also be used for the selective reduction of only one functional group of a symmetrical difiinctional aldehyde (terephthaldehyde). 

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