Utilization of 2,4-Di-t-butyl-6-(methoxymethyl)phenyl as a New Sterically Protecting Group

Article abstract of DOI:10.1246/bcsj.66.3440

A sterically hindered bromobenzene, 2-bromo-1,5-di-t-butyl-3-(methoxymethyl)benzene, was prepared and converted to the corresponding phosphonous dichloride.The dichloride was then utilized to stabilize a low-coordinate phosphorus compound such as 1-<2,4-di-t-butyl-6-(methoxymethyl)phenyl-2-(2,4,6-tri-t-butylphenyl)diphosphene.Furthermore, the dichloride gave a cyclization product 1-chloro-2,1-oxophosphaindan with elimination of chloromethane on standing at room temperature.