Reduction of CO<sub>2</sub> to Trimethoxyboroxine with BH<sub>3</sub> in THF
journal contribution
posted on 2015-12-17, 05:58 authored by Koji Fujiwara, Shogo Yasuda, Tsutomu MizutaCommercially available THF solutions
of BH<sub>3</sub>·THF,
which contain 0.5 mol % of NaBH<sub>4</sub> as a stabilizing reagent
for BH<sub>3</sub>·THF, react with 1 atm of CO<sub>2</sub> at
room temperature to form trimethoxyboroxine, (MeOBO)<sub>3</sub>,
in 87% yield after 12 h. Since no reaction took place in the absence
of NaBH<sub>4</sub>, NaBH<sub>4</sub> was found to work as a promoter
or catalyst for the reduction of CO<sub>2</sub> with BH<sub>3</sub> to the methoxy compound. A similar reaction using HCOONa in place
of NaBH<sub>4</sub> also gave (MeOBO)<sub>3</sub> in comparable yield.
History
Related Materials
- 1.
