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 Ethyl 4-methylbenzoate
94-08-6

Ethyl 4-methylbenzoate synthesis

15synthesis methods
-

Yield:94-08-6 99%

Reaction Conditions:

with oxone at 65; for 30 h;

Steps:

4.3 General procedure for preparation of esters (RCO2R′) 5 from 2-oxoacids (RCOCO2H) 3/2-oxoaldehydes (RCOCHO) 3 &/2-oxoesters (RCOCO2R″) 4

General procedure: A mixture of 2-oxoacids 2/2-oxoaldehydes 3/2-oxoesters 4 (0.5mmol), oxone (1.25mmol) and alcohol (1.5mL) in round bottomed flask was stirred at 65°C. After completion of the reaction that was confirmed by thin layer chromatography, the crude mixture was cooled to room temperature, filtered and purified by column chromatography using silica gel (100-200 ) with ethyl acetate and hexane as an eluent to afford the desired product 5 in 70-99 % yields.

References:

Padala, Anil K.;Saikam, Varma;Ali, Asif;Ahmed, Qazi Naveed [Tetrahedron,2015,vol. 71,# 50,p. 9388 - 9395] Location in patent:supporting information

Ethyl 4-methylbenzoate Related Search: