3693-54-7Relevant articles and documents
Lewis acid-catalyzed three-component condensation reactions of aldehydes, N-silylcarbamates, and allylsilane: Synthesis of N-homoallylcarbamates
Niimi,Serita,Hiraoka,Yokozawa
, p. 7075 - 7078 (2000)
For simultaneous construction of the polyurethane backbone and the allyl side chains, Lewis acid-catalyzed three-component condensation reactions of carbonyl compounds, N-trimethylsilylcarbamates, and allyl-trimethylsilane are studied. The reaction of these three compounds took place in the presence of a catalytic amount of TrClO4 at 0°C to yield the corresponding N-homoallylcarbamates in good yields. This reaction was also applied to the synthesis of a polyurethane having the allyl side chains. (C) 2000 Elsevier Science Ltd.
Acyloxy derivatives of trivalent phosphorus in amidoalkylation of hydrophosphoryl compounds
Dmitriev,Ragulin
, p. 1888 - 1894 (2014/01/06)
In order to model the previously suggested mechanism of the P-C bond formation via the Arbuzov reaction, we have studied the interaction of diethylacylphosphite (prepared beforehand as well as generated in situ from tetraethylpyrophosphite) with the in situ generated acyliminium cation. Various conditions of in situ generation of acylphosphite derivatives of P(III) from hydrophosphoryl compounds and acyliminium ions from N,N′- alkylidenebiscarbamates have been investigated: solvent nature, acid catalyst, and the reagents mixing order). The results obtained have confirmed the suggested mechanism of three-component reaction of amidoalkylation of hydrophosphoryl compounds with the formation of P-C bond via the Arbuzov reaction of in situ formed intermediates.
A convenient synthesis of N1-substituted 3,4-dihydropyrimidin-2(1H)-ones by cyclocondensation of α-chlorobenzyl isocyanates with ethyl N-alkyl(aryl)-β-aminocrotonates
Sukach, Volodymyr A.,Bol'but, Andriy V.,Sinitsa, Anatoliy D.,Vovk, Mykhaylo V.
, p. 375 - 378 (2007/10/03)
A new convenient approach to the synthesis of N1-substituted 3,4-dihydropyrimidin-2(1H)-ones was developed using the regioselective cyclocondensation of α-chlorobenzyl isocyanates with ethyl N-alkyl(aryl)-β-aminocrotonates. A number of N1-aryl and N1-alky