REACTIVITY OF 3-AMINO-4-IMINO-2-THIOXO-1, 2,3,4-TETRAHYDROQUINAZOLINES AND -4-IMINO-2-SELENOXO-1,2,3,4-TETRAHYDROQUINAZOLINES

Authors
PFEIFFER WD PAZDERA P HETZHEIM A MUCKE J
Citation
Wd. Pfeiffer et al., REACTIVITY OF 3-AMINO-4-IMINO-2-THIOXO-1, 2,3,4-TETRAHYDROQUINAZOLINES AND -4-IMINO-2-SELENOXO-1,2,3,4-TETRAHYDROQUINAZOLINES, Die Pharmazie, 50(1), 1995, pp. 21-25
Citations number
31
Categorie Soggetti
Pharmacology & Pharmacy",Chemistry
Journal title
Die Pharmazie → ACNP
ISSN journal
00317144
Volume
50
Issue
1
Year of publication
1995
Pages
21 - 25
Database
ISI
SICI code
0031-7144(1995)50:1<21:RO32>2.0.ZU;2-8
Abstract
The preparation of -imino-2H,6H-1,3,4-thiadiazino-[2,3-b]quinazolines and imino-2H,6H-1,3,4-selenadiazino[2,3-b]quinazolines by condensation of alpha-haloketones with no-4-imino-2-thioxo-1,2,3,4-tetrahydro-quin azoline and -4-imino-2-selenoxo-1,2,3,4-tetrahydroquinazoline, respect ively, is described. 1,3,4-Thiadiazino[2,3-b]quinazolines can be conve rted to pyrazolo[3,2-b]-quinazolines by sulfur extrusion.