成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

2467-18-7

Boric acid, tribenzyl ester synthesis

8synthesis methods
-

Yield:2467-18-7 88%

Reaction Conditions:

with calcium hydride in toluene;byproducts: H2; react. under N2, slow addn. of the alcohol via syringe to B(OH)3 (ratio 3:1) and CaH2, cooling in a water bath, slow heating to 80-90°C for 12 h after abating the H2 gas evolution; distn. of the volatile products under reduced pressure (distn. pot temp. <= 120°C), extn. with hot toluene or cyclohexane under N2;

References:

Cole, T. E.;Quintanilla, R.;Rodewald, S. [Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry,1990,vol. 20,p. 55 - 64]