Реакция #640564

ord-62a0d45137b84955ba426b84f030d4bd

Уравнение реакции

OCC(F)(F)Br
2-bromo-2,2-difluoroethanol
CC(C)(C)C(=O)Cl
pivalic chloride
CC(C)(C)C(=O)OCC(F)(F)Br
2-bromo-2,2-difluoroethyl pivalate

Реагенты

Нет

Условия реакции

Подробные условия
See reaction.notes.procedure_details.

Обработка

  1. 1
    ДругоеOne exemplary compound may be synthesized

Методика

These recurring units may be synthesized, for example, by the following method. One exemplary compound may be synthesized by reacting 2-bromo-2,2-difluoroethanol with pivalic chloride or anhydride to form 2-bromo-2,2-difluoroethyl pivalate, converting the bromo group into sodium sulfinate using a sulfur compound such as sodium dithionite, and converting sulfinic acid into sulfonic acid using an oxidizing agent such as hydrogen peroxide. This is followed by cation exchange with a triarylsulfonium halide or the like. The pivalic ester is then subjected to alkaline hydrolysis. Through reaction with (meth)acrylic anhydride, the alcohol resulting from hydrolysis is converted into a (meth)acrylic derivative, yielding the end compound.

Источник

DOI: 10.6084/m9.figshare.5104873.v1Патент: US08048610B2uspto-grants-2011_11