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 5,6,7,8-Tetrahydroquinoxaline
34413-35-9

5,6,7,8-Tetrahydroquinoxaline synthesis

1synthesis methods
By condensation of alicyclic α, β-diketone with an α, β-diamine; condensation of an acyclic α, β-diamine with an α, β-dicarbonyl.
-

Yield:-

Reaction Conditions:

Stage #1:2,3-diethynylquinoxaline with hydrogen;4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane in octane at 120; under 37503.8 Torr; for 22 h;
Stage #2: with waterCatalytic behavior;Overall yield = 95 %Chromat.; chemoselective reaction;

References:

Feng, Xuanyu;Song, Yang;Chen, Justin S.;Li, Zhe;Chen, Emily Y.;Kaufmann, Michael;Wang, Cheng;Lin, Wenbin [Chemical Science,2019,vol. 10,# 7,p. 2193 - 2198]

FullText

5,6,7,8-Tetrahydroquinoxaline Related Search: