o-DPPB-Directed hydroformylation could serve as a key step for the construction of bifunctionalized stereotriad building blocks, which form the basis of polyketide natural products (see scheme). The prepared building blocks are well suited to permit polyketide chain extensions into both directions of the main chain. o-DPPB=ortho-diphenylphosphanylbenzoyl.
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Breit et al. (1999) studied this question.