40387-24-4Relevant academic research and scientific papers
Ketene-S,N-acetals as Synthetic Intermediates for Heterocycles. Reaction of Ketene-S,N-acetals with Aryl Isocyanates
Takahata, Hiroki,Nakajima, Tomoko,Nakano, Masaharu,Tomiguchi, Akira,Yamazaki, Takao
, p. 4299 - 4308 (2007/10/02)
Reaction of ketene-S,N-acetals (1-6), which are useful synthetic intermediates for heterocycles, with aryl isocyanates (7) is described.Annulation of 1-3 and 4-6 with 7 in boiling toluene gave bicyclic (8-10) and monocyclic (11-13) uracil derivatives, res
ACTIVATED LACTAMS: REACTION OF KETENE-S,N-ACETALS WITH ARYL ISOCYANATES
Takahata, Hiroki,Nakano, Masaharu,Tomiguhi, Akira,Yamazaki, Takao
, p. 413 - 416 (2007/10/02)
Reaction of ketene-S,N-acetals (1, 2, and 3) as activated lactams with aryl isocyanates (4a-d) has been described.The vinylogous ureas (6a-d and 7a-d) obtained by this reaction have been utilized as intermediates for the synthesis of some uracil derivatives.
Lactam Acetals : Part III - Reactions with Aryl Isocyanates and Aryl Isothiocyanates
Singh, Jujhar,Virmani, Vinod,Jain, Padam C.,Anand, Nitya
, p. 195 - 198 (2007/10/02)
Lactam acetals (1-3) react readily with aryl isothiocyanates to form 1,3-diaryl-2,4-dithioxo-N-alkyl-azacycloalkanopyrimidines (6-11).With aryl isocyanates the products formed are dependent upon the ring size of the lactam acetal: 1-methyl-2,2-dime
