Molecules 2004, 9(4), 223-231; doi:10.3390/90400223

Synthesis and Some Reactions of 3-Chloro-2-(cyanomethylene)-1,2-dihydroquinoxalines

1,* email and 2email
Received: 16 December 2003; in revised form: 11 February 2004 / Accepted: 20 February 2004 / Published: 31 March 2004
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: 2,3-Dichloroquinoxaline and some of its derivatives have been reacted with malononitrile and ethyl cyanoacetate to yield a variety of 3-chloro-2-(cyanomethylene)- 1,2-dihydroquinoxaline derivatives. The reaction of 3-chloro-2-(dicyanomethylene)-1,2- dihydroquinoxaline (2e) with pyridine and its methyl derivatives led to the zwitterionic structures 6a-6c. The structures of the newly synthesized compounds were assigned by spectroscopic data and elemental analyses.
Keywords: 2; 3-Dichloroquinoxaline; ethoxycarbonylcyanomethylene- and dicyano- methylene-3-chloro-1; 2-dihydroquinoxalines; betaine structures; spectroscopic data
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MDPI and ACS Style

Obafemi, C.A.; Pfleiderer, W. Synthesis and Some Reactions of 3-Chloro-2-(cyanomethylene)-1,2-dihydroquinoxalines. Molecules 2004, 9, 223-231.

AMA Style

Obafemi CA, Pfleiderer W. Synthesis and Some Reactions of 3-Chloro-2-(cyanomethylene)-1,2-dihydroquinoxalines. Molecules. 2004; 9(4):223-231.

Chicago/Turabian Style

Obafemi, Craig A.; Pfleiderer, Wolfgang. 2004. "Synthesis and Some Reactions of 3-Chloro-2-(cyanomethylene)-1,2-dihydroquinoxalines." Molecules 9, no. 4: 223-231.

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