NEW METHOD FOR THE PREPARATION OF 2-CARBOALKOXYPYRAZOLO[5,1-B]QUINAZOLIN-9(1H)ONES

被引：8

作者：

BEAM, CF ^{[1
]}

BROWN, J ^{[1
]}

DAWKINS, DR ^{[1
]}

FIVES, WP ^{[1
]}

HEINDEL, ND ^{[1
]}

机构：

[1] LEHIGH UNIV,DEPT CHEM,BETHLEHEM,PA 18015

来源：

JOURNAL OF HETEROCYCLIC CHEMISTRY | 1979年 / 16卷 / 05期

关键词：

D O I：

10.1002/jhet.5570160526

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Anthranilic acid hydrazides were condensed with acetylene diesters, and the intermediate adduets were identified as aeylhydrazones of oxalacetic diester. These anthranilic hydrazones could be thermally cyclized to 2‐carboalkoxypyrazolo[5,1‐b] quinazolin‐9(1H)ones. Copyright © 1979 Journal of Heterocyclic Chemistry

引用

页码：957 / 960

页数：4

共 14 条

[1] [Anonymous], US Pat., Patent No. 3409668
[2] BUDI MN, 1971, INDIAN J CHEM, V9, P743
[3] CASAGRANDE C, 1965, FARMACO-ED SCI, V20, P544
[4] CYCLIZATION OF ANTHRANILAMIDE-ACETYLENEDICARBOXYLATE ADDUCTS . A FACILE SYNTHESIS OF 1,4-BENZODIAZEPINE-3,5-DIONES
HEINDEL, ND
FISH, VB
LEMKE, TF
[J]. JOURNAL OF ORGANIC CHEMISTRY, 1968, 33 (11) : 3997 - &
[5] IMINE-ENAMINE TAUTOMERS FROM HYDRAZINE AND ARYL HYDRAZINE ADDITIONS TO ACETYLENEDICARBOXYLATE
HEINDEL, ND
KENNEWEL.PD
PFAU, M
[J]. JOURNAL OF ORGANIC CHEMISTRY, 1970, 35 (01) : 80 - &
[6] HEINDEL ND, 1969, CHEM COMMUN, P757
[7] Report from the Laboratory of Applied Chemistry and Pharmacy of the University Leibzig. Chinazolone of acyliated o-aminobenzol hydrazides
Heller, G
[J]. JOURNAL FUR PRAKTISCHE CHEMIE-LEIPZIG, 1925, 111 (1/2): : 36 - 53
[8] Quinoline from acylate o-aminobenzil hydrasides. II
Heller, G
[J]. JOURNAL FUR PRAKTISCHE CHEMIE-LEIPZIG, 1927, 116 (1/2): : 1 - 9
[9] MENZEL KH, 1961, Patent No. 1120455
[10] MENZEL KH, 1960, Patent No. 1111505

← 1 2 →