STUDIES ON REACTIONS OF 2-BROMO-3-KETOTRITERPENOIDS .1. PREPARATION OF 2,3-DIOXIMINOTRITERPENOID AND SUBSEQUENT CYCLIZATION OF THE DIOXIMINO DERIVATIVE TO [2,3-C]-1',2',5'-OXADIAZOLE DERIVATIVE AND A NEW ROUTETO DIOSPHENOL SYNTHESIS

Authors
PRADHAN BP GHOSH P
Citation
Bp. Pradhan et P. Ghosh, STUDIES ON REACTIONS OF 2-BROMO-3-KETOTRITERPENOIDS .1. PREPARATION OF 2,3-DIOXIMINOTRITERPENOID AND SUBSEQUENT CYCLIZATION OF THE DIOXIMINO DERIVATIVE TO [2,3-C]-1',2',5'-OXADIAZOLE DERIVATIVE AND A NEW ROUTETO DIOSPHENOL SYNTHESIS, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 32(9), 1993, pp. 920-923
Citations number
11
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry → ACNP
ISSN journal
03764699
Volume
32
Issue
9
Year of publication
1993
Pages
920 - 923
Database
ISI
SICI code
0376-4699(1993)32:9<920:SORO2.>2.0.ZU;2-V
Abstract
Lupano[2,3-c]-1',2',5'-oxadiazole and 28-carbomethoxylupan[2,3-c] -1', 2',5'-oxadiazole derivative (6 and 9) and lupan-2,3-dione and 28-carbo methoxylupan-2,3-dione (10' and 11') have been prepared by refluxing t he corresponding 2,3-dioximino derivatives (5 and 8) and 2,2-dibromo d erivatives (4 and 7) with dry DMF and methanolic KOH, respectively.