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Trisdimethylamino phosphine

Substitution Compounds of Ni(CO)4 by Aminophosphines, Cyanato-phosphine, Thiocyanatophosphine. In the reaction of tetracarbonylnickel or bis(cyclopentadienylcarbonylnickel) with trisdimethylamino-phosphine(L), the disubstitution compound, Ni(CO)2L2, was obtained... [Pg.338]

Trisdimethylamino phosphine Oxido compounds from dialdehydes... [Pg.271]

Caron aldehyde ester was of great help particularly for the casual preparation of many chrysanthemic acid analogues for insecticidal research. Instead of triphenyl phosphine the trisdimethylamino phosphine may be apphed preferentially [247]. The production of caronaldehyde 755 by the route outUned above is still essential for the production of deltamethrin. Alternatively to the Wittig reaction, the dichlorome-thylene moiety may be introduced by reaction of carbenoids or carbanions from haloforms with the hemiketal 158 of free cis-caronaldehyde, (reaction scheme 100) [248, 249] and subsequently completed by dehalogenation processes. [Pg.48]

Trisdimethylamino phosphine turned out to be the preference for this type of reaction [383], when the halogen was less reactive, as found in the polyfluorine-containing halocarbons. This seems to be the method of choice to synthesize vinylfluorides from aldehydes. The next table hsts a number of pyrethroid acids prepared by the Homer-Wittig reaction from caronaldehyde, mostly as mixtures of stereoisomers, others as single racemic stereoisomers and some as single isomers. [Pg.81]

Similar reaction sequences of this type yield bifenthrine [417, 881] (Reaction scheme 264). The cis-caronaldehyde ester 400 of bifenthrine alcohol 306 on olefination with trichlorofluoroethane with trisdimethylamino phosphine gives the insecticide 401 [420] (Reaction scheme 264). [Pg.142]


See other pages where Trisdimethylamino phosphine is mentioned: [Pg.134]    [Pg.134]    [Pg.210]    [Pg.76]    [Pg.491]   
See also in sourсe #XX -- [ Pg.54 , Pg.65 ]




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