天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

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 TETRAHYDRO-FURAN-3-CARBONYL CHLORIDE
69595-02-4

TETRAHYDRO-FURAN-3-CARBONYL CHLORIDE synthesis

2synthesis methods
-

Yield: 99%

Reaction Conditions:

with oxalyl dichloride;N,N-dimethyl-formamide in dichloromethane at 20; for 0.5 h;

Steps:

82.a
To a solution of tetrahydro-3 -furancarboxylic acid (500 mg, 4.31 mmol) in Dichloromethane (DCM) (10 ml) was added oxalyl chloride (1.131 ml, 12.92 mmol), followed by 2 drops of DMF. The mixture was stirred at room temperature for 30 min, and then excess oxalyl chloride and dichloromethane were removed in vacuo to provide crude tetrahydro-3-furancarbonyl chloride (575 mg, 99%).

References:

GLAXOSMITHKLINE LLC;LIN, Hong;LUENGO, Juan, I.;RIVERO, Ralph, A.;SCHULZ, Mark, James;XIE, Ren;ZENG, Jin WO2010/135504, 2010, A1 Location in patent:Page/Page column 74-75

TETRAHYDRO-FURAN-3-CARBONYL CHLORIDE Related Search: