午夜插插,噜噜噜影院,啪啪伊人网,欧美熟夫,景甜吻戏视频,男人强操性感蕾丝美女视频在线网站,日本美女跳舞视频

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 5-NITRO-2-PIPERIDINOBENZALDEHYDE
30742-60-0

5-NITRO-2-PIPERIDINOBENZALDEHYDE synthesis

3synthesis methods
-

Yield:30742-60-0 94%

Reaction Conditions:

with N-ethyl-N,N-diisopropylamine in N,N-dimethyl-formamide at 20;

Steps:

136.1 5-nitro-2-(piperidin-1-yl)benzaldehyde:

2-fluoro-5-nitrobenzaldehyde (1 g, 5.91 mmol) wasdissolved in DMF (10 mL) and piperidine (0.64 mL, 6.50 mmol) was added, followed by DIPEA (2.27 mL, 13.0 mmol) The mixture was stirred overnight at room temperature. Water was added and the resulting precipitate was collected by filtration and dried in vacuo to give thetitle compound (1.3 g, 94%) as a yellow solid which was used without further purification. LCMS (Method C) : =1.59 mm, m/z = 235 [M+H].

References:

WO2015/92431,2015,A1 Location in patent:Page/Page column 266; 267

5-NITRO-2-PIPERIDINOBENZALDEHYDE Related Search: