天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

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 2-Bromo-5-methylpyrazine
98006-90-7

2-Bromo-5-methylpyrazine synthesis

4synthesis methods
-

Yield:-

Steps:

Multi-step reaction with 3 steps
1.1: ammonia / methanol / 4 h / 0 - 5 °C
2.1: potassium hydroxide; bromine / water / 0 - 90 °C
3.1: hydrogen bromide / water / 25 - 30 °C
3.2: 1 h / -50 °C
3.3: 1.5 h / -50 °C

References:

KomReddy, Venugopal;Rillema, D. Paul;Nguyen, Huy;Kadel, Lava [Journal of Heterocyclic Chemistry,2019,vol. 56,# 3,p. 972 - 979]

2-Bromo-5-methylpyrazine Related Search: