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!

ChemicalBook CAS DataBase List N,N-DIBUTYLLACTAMIDE
6288-16-0

N,N-DIBUTYLLACTAMIDE synthesis

2synthesis methods
-

Yield:6288-16-0 64%

Reaction Conditions:

with methanol at 0 - 60; for 20 h;Inert atmosphere;

Steps:

10 Preparation of N,N-dibutyl lactamide

Example 10
Preparation of N,N-dibutyl lactamide
Methyl lactate (1 g) obtained by the method of Examples 1?6, N,N-dibutyl amine (1.5 g) and methanol (2 g) were introduced into a reactor at 0° C. under Ar atmosphere, the temperature was increased to 60° C., and the mixture was reacted for 20 hours.
And then, the reaction mixture was cooled to room temperature, and N,N-dibutyl lactamide was obtained by fractional distillation (0.9 g, yield 64%).
1H NMR (CDCl3): δ 4.47 (q), 3.27 (t), 1.59 (m), 1.36 (m), 1.03 (t)

References:

US2013/79547,2013,A1 Location in patent:Paragraph 0073; 0074

N,N-DIBUTYLLACTAMIDE Related Search: