Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Cyclobutene 1,2 dicarboxamide

Three syntheses of 1,2-dicyanocyclobutene (2) have been previously described. The first, involving dehydration of cyclobutene-1,2-dicarboxamide does not specify the yield.9 The second procedure involves a concomitant chlorination and catalytic dehydrochlorination of 1,2-dicyanocyclobutane in the gas phase, yielding 1,2-dicyanocyclobutene (2) in a mixture of several other products.10 The third method consists of dechlorination of 1,2-dichloro-1,2-dicyanocyclobutane using metals, such as zinc copper couple,11 Raney nickel,11 and, especially, Raney cobalt.2 In comparison with this last-mentioned synthesis, the overall yield of the present procedure is 5-10% higher. Furthermore, the reaction is performed in less time and utilizes considerably cheaper reagents. [Pg.72]


See other pages where Cyclobutene 1,2 dicarboxamide is mentioned: [Pg.75]    [Pg.159]    [Pg.75]    [Pg.159]   
See also in sourсe #XX -- [ Pg.58 , Pg.72 ]

See also in sourсe #XX -- [ Pg.58 , Pg.72 ]




SEARCH



Cyclobutene

Cyclobutenes

© 2024 chempedia.info