午夜插插,噜噜噜影院,啪啪伊人网,欧美熟夫,景甜吻戏视频,男人强操性感蕾丝美女视频在线网站,日本美女跳舞视频

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!

ChemicalBook CAS DataBase List 2',3'-DIHYDROXYACETOPHENONE
13494-10-5

2',3'-DIHYDROXYACETOPHENONE synthesis

9synthesis methods
Also obtained by bioconversion of acetophenone through the living cells of Escherichia coli carrying plasmid pUC6256B expressing todCI-bphA2A3A4 and bphB (39.2%).
-

Yield: 91.5%

Reaction Conditions:

with boron tribromide in dichloromethane at -30; for 2 h;

Steps:

1-(2,3-dihydroxyphenyl)ethan-1-one, 30
BBr3 (600 μL, 6.2 mmol) was added to a DCM solution of 29 (383 mg, 3.1 mmol) at -30 . After stirring for 2 h, the reaction was quenched by dropwise added saturated NaHCO3 agueous solution (20 mL) and extracted with DCM. The organic layer was dried over Na2SO4, filtered and concentrated in vacuo to give 30 as light white solid (302 mg, 91.5%).

References:

Sun, De-Yang;Cheng, Chen;Moschke, Katrin;Huang, Jian;Fang, Wei-Shuo [Molecules,2020,vol. 25,# 1,art. no. 102] Location in patent:supporting information

2',3'-DIHYDROXYACETOPHENONE Related Search: