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Primary amines phosphoryl derivatives

An alternative method involves reaction of an a-acylaminoketone (12) with a primary amine and subsequent ring closure of the resultant Schiff s base (13) with phosphoryl chloride. This enables the introduction of a 1-substituent as in (14) to be carried out efficiently, and if the amine were replaced with a monosubstituted hydrazine, the imidazole derivative (IS) resulted (78LA1916). [Pg.114]

Ethyl diethoxyphosphinylpropynoate (122) can act as a good dienophile it also reacts with azides to form C-phosphorylated-l,2,4-triazoles. Amines add to l,2-bis(dialkoxyphosphinyl)acetylene to give the enamines (123) when the latter are derived from primary amines, they can be C-alkylated via their lithio derivative. ... [Pg.132]

JCS(P1)1171] and Sung (81CC1089 82JOC3623) found that these 1,2,4-triazole derivatives of uridine can be readily prepared at room temperature with excess 1,2,4-triazole and phosphoryl chloride and triethylamine or with 0-chlorophenyldi-(l//-l,2,4-triazol-l-yl)phosphine oxide in acetonitrile. These stable, often crystalline 1,2,4-triazole derivatives react readily with aqueous ammonia and primary or secondary amines at room temperature to afford the corresponding cytidines in high yields. [Pg.166]


See other pages where Primary amines phosphoryl derivatives is mentioned: [Pg.110]    [Pg.46]    [Pg.214]    [Pg.41]    [Pg.241]    [Pg.266]    [Pg.47]    [Pg.28]    [Pg.293]    [Pg.452]    [Pg.700]    [Pg.700]    [Pg.99]    [Pg.105]    [Pg.372]    [Pg.99]    [Pg.609]    [Pg.132]    [Pg.7]    [Pg.109]    [Pg.328]    [Pg.19]   
See also in sourсe #XX -- [ Pg.71 ]




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Amination primary

Amines derivatives

Amines phosphorylation

Amines primary

Phosphorylated amine

Primary derivatives

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