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 2,3-EPOXYPROPYL-4-METHOXYPHENYL ETHER
2211-94-1

2,3-EPOXYPROPYL-4-METHOXYPHENYL ETHER synthesis

4synthesis methods
-

Yield: 97.3%

Reaction Conditions:

Stage #1:4-methoxy-phenol with potassium carbonate in acetone at 20; for 0.5 h;
Stage #2:epichlorohydrin in acetone at 60 - 65; for 72 h;

Steps:

1.A [Example 1] Synthesis of Diacylglycerol Lactone Compound (EC-A129)
A. As shown in Reaction 1a below, 50 g (402.77 mmole) of 4-methoxyphenol was dissolved in 1500 ml of acetone. Then, 278 g (2013.8 mmole) of K2CO3 was added and stirred at room temperature for 30 minutes. 126 ml (1611.1 mmole) of epichlorohydrin was added to the 4-methoxyphenol solution, the temperature was raised to 60 to 65° C., and refluxed for 72 hours. The reaction was confirmed by TLC (ethylacetate(EA):hexane(Hex)=1:9). When the reaction was completed, the reaction solution was filtered by a celite filter, the filtrate was concentrated. The concentrate was purified with a flash column (eluent:ethyl acetate(EA):hexane(Hex)=1:10 (volume ratio) mixture) to obtain 68 g of the target compound (yield: 97.3%)

References:

ENZYCHEM LIFESCIENCES CORPORATION;SOHN, Ki Young;KIM, Jae Wha;YOON, Sun Young;YOO, Chang Hyun;JEONG, Jin Seon US2021/2242, 2021, A1 Location in patent:Paragraph 0034

2,3-EPOXYPROPYL-4-METHOXYPHENYL ETHER Related Search: