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 4,6-Dimethoxy-2-(phenoxycarbonyl)aminopyrimidine
89392-03-0

4,6-Dimethoxy-2-(phenoxycarbonyl)aminopyrimidine synthesis

3synthesis methods
-

Yield: 83%

Reaction Conditions:

with triethylamine in acetonitrile at 60; for 6 h;Green chemistry;

Steps:

Step-4: Preparation of phenyl 4,6-dimethoxypyrimidin-2-ylcarbamate (6):
To a stirred solution of compound 5 (1 g, 6.45 mmol) in acetonitrile (10 mL) was added triethylamine (0.85 g, 8.40 mmol) followed by phenyl chloroformate (1.31 g, 8.37 mmol) at room temperature. The reaction mixture was heated to 60 °C for 6 h. The reaction mixture was cooled to room temperature and diluted with water (6 mL) and the precipitated solids were filtered and dried under vacuum to obtain compound 6. White solid, Yield: 1.48 g, 83 %; m.p.: 119 °C; 1H NMR (400 MHz, DMSO-d6): δ 7.65 (s, 1H), 7.42-7.40 (m, 2H), 7.18-7.14 (m, 3H), 5.80 (s, 1H), 3.96 (s, 6H); ESI-MS: m/z, 276.1 (M+1).

References:

Gilbile, Rohidas;Bhavani, Ram;Vyas, Ritu [Asian Journal of Chemistry,2017,vol. 29,# 7,p. 1477 - 1481]

4,6-Dimethoxy-2-(phenoxycarbonyl)aminopyrimidine Related Search: