Peet, Norton P.; Sunder, Shyam, Journal of Heterocyclic Chemistry, 1984, vol. 21, p. 1807 - 1816
作者:Peet, Norton P.、Sunder, Shyam
DOI:——
日期:——
Bogert; Cook, Journal of the American Chemical Society, 1906, vol. 28, p. 1451
作者:Bogert、Cook
DOI:——
日期:——
SYNTHESIS AND CYCLIZATION OF 3-[3′(2′-SPIROTHIAZOLIDIN-4′-ONYL)] QUINAZOLIN-4-ONE DERIVATIVES
作者:Maher F. El-zohry、Abdullah A. Al-ahmadi、Fatimah A. Aquily
DOI:10.1080/10426500108040252
日期:2001.8
The reaction of 3-(3H)-aminoquinazolin-4-one derivatives 4a-c with 2-spiro-1,3-oxathio-lan-5-one derivatives 7a-f in ethanol yielded 3-[3'(2'-spirothiazolidin-4'-one)]quinazolin-4-one derivatives 8a-r in excellent yield. Cyclization of compounds 8a-r with sodium hydroxide in ethanol or with fusion with anhydrous sodium acetate gave the spirothiazol-opyrazoloquinazolinone derivatives 9a-r. All the synthesized spiro heterocyclic derivatives were identified by conventional methods (IR. H-1 NMR) and elemental analyses.
PEET, N. P.;SUNDER, SH., J. HETEROCYCL. CHEM., 1984, 21, N 6, 1807-1816
作者:PEET, N. P.、SUNDER, SH.
DOI:——
日期:——
SYNTHESIS AND APPLICATION OF NOVEL HETEROCYCLIC DYES BASED ON 11-AMINO-3-BROMO-13H-ACENAPHTHO[1,2-e]PYRIDAZINO[3,2-b]- QUINAZOLI NE-13-ONE