一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
010-86108875
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-Bromopyrimidine
4595-59-9

5-Bromopyrimidine synthesis

3synthesis methods
5-Bromopyrimidine is prepared by reacting dibromodifuranone with formamide in the presence of B2O2 catalyst at 180-185°C to obtain the product.
-

Yield:4595-59-9 48%

Reaction Conditions:

with boron trioxide in methanol at 180 - 185; for 15 h;

References:

Kress, Thomas J.;Szymanski, Edward [Journal of Heterocyclic Chemistry,1983,vol. 20,p. 1721 - 1722]

5-Bromopyrimidine Related Search:

大悟县| 普洱| 临海市| 南乐县| 武安市| 两当县| 克拉玛依市| 建宁县| 右玉县| 博乐市| 札达县| 和顺县| 阳新县| 鄂伦春自治旗| 安庆市| 建始县| 大田县| 平邑县| 环江| 闻喜县| 泾阳县| 汉源县| 韶山市| 庄河市| 都兰县| 大足县| 五常市| 饶阳县| 仁化县| 朝阳市| 涞源县| 措勤县| 南汇区| 灵山县| 绥棱县| 天峨县| 云和县| 金乡县| 巴彦淖尔市| 化德县| 华安县|