73696-36-3Relevant academic research and scientific papers
Various synthetic routes to imidazothienopyrimidines and pyrimidothienopyrimidines in some cases annelated
Leistner, S.,Guetschow, M.,Vieweg, H.,Wagner, G.,Strohscheidt, Th.,Grupe, Renate
, p. 756 - 760 (2007/10/02)
The tricyclic or tetracyclic imidazothienopyrimidines and pyrimidothienopyrimidines were synthesized by three routes: Route A: Thieno1,3-thiazin-4-thiones E undergo the ring transformation with α,ω-diamino-alkanes to giv
Heterocyclic β-Enamino Esters, 27. Synthesis of Heterocondensed 6H-1,3-Oxazin-6-ones from N-Acylenamino Esters in the System Triphenylphosphane/Hexachloroethane/Triethylamine
Achakzi, Darwizah,Ertas, Muemtaz,Appel, Rolf,Wamhoff, Heinrich
, p. 3188 - 3194 (2007/10/02)
A simple ring closure reaction of N-acylenamino esters (1b, e, 2, 3a - f, 7) in the system triphenylphosphane/hexachloroethane/triethylamine is described proceeding with high yields.Under chlorinating 3-ester cleavage heterocondensed 6H-1,3-oxazin-6-ones
FUNCTIONAL DERIVATIVES OF THIOPHENE. 18. SYNTHESIS OF 4-OXOTHIENOOXAZINE DERIVATIVES AND THIOPHENE-3-CARBOXYLIC ACID HYDRAZIDES
Kharizomenova, I.A.,Samsonova, N.V.,Kaplina, N.V.,Kapustina, M.V.,Grinev, A.N.
, p. 36 - 37 (2007/10/02)
2-Aryl-4-oxothienooxazine derivatives were synthesized.Opening of the oxazine ring to give 2-benzamidothiophene-3-carboxylic acid hydrazide derivatives is observed when these compounds are treated with hydrazine hydrate.
