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 pivaloylacetate
17094-34-7

Ethyl pivaloylacetate synthesis

10synthesis methods
-

Yield:17094-34-7 91%

Reaction Conditions:

in paraffin oil;Diethyl carbonate

Steps:

1.4 Preparation of Pivaloyl Acetic Esters
4. 325 g of sodium hydride (80% solution in paraffin oil) were suspended in 2500 cc of diethyl carbonate and 500 cc of hexamethyl phosphoric acid triamide, 500 g of pinacolone (92%) were then slowly added dropwise at 45° to 50° C. and, on completion of the addition the reaction mixture was treated as described in 3 above. The yield was 91% of pivaloyl acetic acid ethyl ester.

References:

AGFA-Gevaert, A.G. US4031130, 1977, A

FullText

Ethyl pivaloylacetate Related Search: