103174-73-8Relevant academic research and scientific papers
ONE CARBON UNIT TRANSFER TO ENAMINES THROUGH OXAZOLLIDINES AND TETRAHYDRO-2H-1,3-OXAZINE
Singh, Harjit,Sarin, Rakesh,Singh, Kamaljit
, p. 3039 - 3042 (1986)
Oxazolidines and tetrahydro-2H-1,3-oxazine undergo acid catalysed transfer of C2 carbon unit inbetween two nucleophilic carbons of stabilised enamines.
CARBON TRANSFER REACTIONS WITH HETEROCYCLES-V. A FACILE SYNTHESIS OF NIFEDIPINE AND ANALOGUES
Singh, Harjit,Singh, Kamaljit
, p. 3967 - 3974 (2007/10/02)
Oxazolidines and tetrahydro-(2H)-1,3-oxazines transfer their C(2) units at the carbonyl group oxidation level to alkyl-β-amino/anilinocrotonates to form 1,4-dihydropyridines elaborated at C-4.
Synthesis and Properties of Ethyl 1,4-Dihydro-5-pyrimidinecarboxylates: Comparison of Dihydropyrimidines and Dihydropyridines
Kashima, Choji,Shimizu, Masao,Tagaya, Atsuko,Katoh, Akira,Omote, Yoshimori
, p. 901 - 919 (2007/10/02)
1,4-Dihydropyrimidines which have electron withdrowing groups were sythesized by the desulphurization of pyrimidine-4(1H)-thiones with Raney nickel.Since this compounds are the aza-analogues of dihydropyridines, comparisons of spectral data, pKa' values,
