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 Methyl cyclopropane carboxylate
2868-37-3

Methyl cyclopropane carboxylate synthesis

11synthesis methods
-

Yield:2868-37-3 768.32 g

Reaction Conditions:

with sodium methylate in methanol at 100; for 5 h;Temperature;Time;

Steps:

1-10 Example 3

In a 1 L lined autoclave,Add 400g butyrolactone,Concentrated sulfuric acid 9.30g,Mix and stir well,Warm up to 50°C,Pass in dimethyl ether to open the ring,During the feeding process, maintain the reaction temperature at 50°C,The pressure is stable at 0.2Mpa,The feeding time is 3h, and the weight gain of the reactor is 166.04g,Stop taking dimethyl ether,Keep warm for 20h,After the reaction is completed, cool to room temperature, exhaust the pressure,Add 134.55g of sodium methoxide methanol solution,Warm up to 100, keep for 5h,Cool to room temperature, transfer out the reactor materials, and weigh them,The content of the product was 51.11% detected by the internal standard method, the total mass was 768.32g, and the calculated yield was 98.18%.

References:

CN113185403,2021,A Location in patent:Paragraph 0020-0060

Methyl cyclopropane carboxylate Related Search: