Cyclohexylidenecyanoacetic acid

B. 1-CyclohexenylacetonUrile. The benzene solution is allowed to cool to about 50°, and the flask is attached to a Vigreux column. The benzene is removed under reduced pressure, whereupon the residual cyclohexylidenecyanoacetic acid solidifies. The flask is then heated slowly in an oil bath to 165 175° while the system... [Pg.26]

Cyclohexylidenecyanoacetic acid has been prepared by the condensation of cyclohexanone and cyanoacetic acid in the presence of piperidine 4-5 and by the hydrolysis of ethyl cyclohexyl-idenecyanoacetate.4... [Pg.28]

Cyclohexenylacetonitrile has been prepared by the decarboxylation of cyclohexylidenecyanoacetic acid 4-5 by the dehydration of 1-cyclohexenylacetamide 5 by the condensation of cyclohexanone and cyanoacetic acid in the presence of piperidine 6 by the condensation of cyclohexanone and ethyl cyano-acetate in the presence of sodium ethoxide 4-7 and by the condensation of cyclohexanone and cyanoacetic acid in the presence of ammonium acetate followed by decarboxylation.8 Ammonium acetate also has been used as a catalyst for the condensation of ketones with ethyl cyanoacetate.3-9... [Pg.28]

See also in sourсe #XX -- [ Pg.25 , Pg.26 , Pg.31 ]

See also in sourсe #XX -- [ Pg.25 , Pg.26 , Pg.31 ]

See also in sourсe #XX -- [ Pg.25 , Pg.26 , Pg.31 ]

See also in sourсe #XX -- [ Pg.25 , Pg.26 , Pg.31 ]

See also in sourсe #XX -- [ Pg.25 , Pg.26 , Pg.31 ]

See also in sourсe #XX -- [ Pg.25 , Pg.26 , Pg.31 ]

See also in sourсe #XX -- [ Pg.25 , Pg.26 , Pg.31 ]

See also in sourсe #XX -- [ Pg.25 , Pg.26 , Pg.31 ]

See also in sourсe #XX -- [ Pg.25 , Pg.26 , Pg.31 ]

See also in sourсe #XX -- [ Pg.25 , Pg.26 , Pg.31 ]

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