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Bis , cycloaddition

CYCLOADDITIONS Bis(acrylonitrile)nickel-(O). 2-Diazopropane. Dichloroketene. 5,5-Dimethoxy-1,2,3,4-tetrachlorocy clopenta-diene. Ethoxyketene. [Pg.178]

Reactions.—Thioketen (83) reacts with azomethines to give /ff-thiolactams. It has been suggested that the dipolar species (84) is formed, instead of the classical dipolar species (85), in the rate-determining step of the cycloaddition. Bis-(trifluoromethyl)thioketen (86) adds to azomethines, isothiocyanates, and azides to form 1,3,5-dithiazines and thiazetidines, 1,3-dithietans, and A -1,2,3,4-thia-triazolines, respectively. The thioketen (86) also undergoes [4 + 2]cycloadditions with dienes. ... [Pg.159]

See other pages where Bis , cycloaddition is mentioned: [Pg.373]   
See also in sourсe #XX -- [ Pg.284 , Pg.287 ]

See also in sourсe #XX -- [ Pg.284 , Pg.287 ]



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