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Chemical communications (Cambridge, England)

A bidirectional synthesis of spiroacetals via Rh(ii)-catalysed C-H insertion.


PMID 28357432

Abstract

Acyclic methylene acetals bearing two diazoester subunits have been converted to [5,5]-spiroacetals via bidirectional C-H insertion under Rh(ii) catalysis. Using a chiral Rh(ii) catalyst, the major diastereomer can be produced in high enantiomeric excess (89%).

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