5,6,7,8-Tetrahydroquinoxaline synthesis

1synthesis methods

Product Name:5,6,7,8-Tetrahydroquinoxaline
CAS Number:34413-35-9
Molecular formula:C8H10N2
Molecular Weight:134.18

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

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3476-89-9 Synthesis

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34413-35-9
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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]

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