There is no need for the recovery of the catalyst in the fluorous biphasic transesterification catalyzed by [{Cl(C6F13CH2CH2)2SnOSn(C6F13CH2CH2)2Cl}2] (1; see scheme), which results in quantitative conversions and yields. An FC-72 solution of the dimeric fluoroalkyldistannoxane 1 can be recycled repeatedly without having to recover the neat catalyst.
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Xiang et al. (2001) studied this question.
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