摘要：

The failure of triphenyl-2-furyltin to condense with either maleic anhydride or crotonaldehyde suggests a deactivating effect of the tin on the chemical reactivity of the rings bonded to the tin atom. The idea is supported by the failure of triphenyl-3-pyridyltin to add methyllithium to the azomethine linkage and by the apparent inability of triphenyl-p-bromophenyltin to undergo formation of an active organometallic compound by customary reactions with magnesium or n-butyllithium. A micro test for tin in organotin molecules is described and the preparation of several organotin compounds containing functional groups is reported.

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