An Improved Preparation of Tris(ethylenedioxyboryl)methane, a Reagent for the Homologation of Aldehydes and Ketones

Article abstract of DOI:10.1016/0040-4020(95)00695-5

The preparation of tris(ethylenedioxyboryl)methane (2), the reagent for the only known homologation of aldehydes and ketones under non-acidic conditions, was improved by avoiding the difficult isolation of the intermediate tris(dimethoxyboryl)methane (1) and by direct crystallization of 2.