成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

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!

1081-09-0

3 5-DIACETYL-2 4 6-TRIMETHYL-1 4-DIHYDR& synthesis

3synthesis methods
-

Yield:1081-09-0 90%

Reaction Conditions:

with uranyl nitrate hexahydrate;ammonium acetate in ethanol at 20; for 0.333333 h;Sonication;

Steps:

General procedure for synthesis of 1,4-DHPs

General procedure: To a solution of aldehyde (1.0 mmol), ethyl/methyl acetoacetate/acetylacetone (2.0 mmol) and ammonium acetate (1.0 mmol) in ethanol (3 mL), uranyl nitrate (10 mol%) was added and the resultant reaction mixture was sonicated at room temperature for the required time (Table 1). The progress of the reaction was monitored by TLC. After completion of the reaction, the mixture was poured into crushed ice. The obtained solid was filtered, washed thoroughly with water, dried, and purified by recrystallisation in ethanol.

References:

Palakshi Reddy;Sarveswari;Vijayakumar [Research on Chemical Intermediates,2015,vol. 41,# 9,art. no. 1784,p. 6877 - 6883]

3 5-DIACETYL-2 4 6-TRIMETHYL-1 4-DIHYDR& Related Search: