A ONE-STEP SYNTHETIC ROUTE TO N-SUBSTITUTED BENZOXAZINES AND QUINAZOLINEDIONES

被引：0
|
作者：
KUMARAN, G [1 ]
KULKARNI, GH [1 ]
机构：
[1] NATL CHEM LAB,POONA 411008,MAHARASHTRA,INDIA
来源：
INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY | 1994年 / 33卷 / 09期
关键词：
D O I：
暂无
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
A mild convenient one pot synthesis of 3-alkyl-2, 3-dihydro-2, 4-dioxo/2-oxo-4-hydroxy-4H-1, 3-benzoxazines (3a-e) and (5a-e) is described, starting from salicylic acid (1) and salicylaldehyde (4) respectively by reaction with ethyl N-alkyl carbamates (2a-e) in the presence of POCl3-ZnCl2. Anthranilic acid (6) on reaction with (2a-c) using same reagents furnish N-alkyl-2-amino-4H-3, 1-benzoxazine-4-ones (7a-c) and 3-alkyl-2, 4-(1H,3H)-quinazolinediones (8a-c).
引用
收藏
页码：877 / 880
页数：4
相关论文
共 50 条
  • [1] N-PHENYLAMINOMETHYLATION . A ONE-STEP ROUTE TO N-SUBSTITUTED ANILINES FROM UNSATURATED FATTY DERIVATIVES
    GRIMM, RA
    [J]. JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1969, 46 (02) : A112 - &
  • [2] N-PHENYLAMINOMETHYLATION - A ONE-STEP ROUTE TO N-SUBSTITUTED ANILINES FROM UNSATURATED FATTY DERIVATIVES AND OLEFINS
    GRIMM, RA
    [J]. JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1969, 46 (11) : 611 - &
  • [3] SIMPLE ONE-STEP ROUTE TO SUBSTITUTED ANTHRAQUINONES
    SAMMES, PG
    DODSWORTH, DJ
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1979, (01) : 33 - 35
  • [4] SIMPLE ONE-STEP ROUTE TO SUBSTITUTED COUMARINS
    GALLASTEGUI, J
    LAGO, JM
    PALOMO, C
    [J]. JOURNAL OF CHEMICAL RESEARCH-S, 1984, (05): : 170 - 171
  • [5] One-step synthesis of hollow N-substituted polypyrrole@β-FeOOH microspheres
    Li, Xiyong
    Feng, Lihua
    Wang, Ke
    Wang, Wenqin
    [J]. SYNTHETIC METALS, 2020, 259
  • [6] A new synthetic route to authentic N-substituted aminomaleimides
    Conley, NR
    Hung, RJ
    Willson, CG
    [J]. JOURNAL OF ORGANIC CHEMISTRY, 2005, 70 (11): : 4553 - 4555
  • [7] A CONVENIENT SYNTHESIS OF N-SUBSTITUTED BENZOXAZEPINES AND BENZOXAZINES
    SHARMA, I
    AGARWAL, M
    RAY, S
    [J]. INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY, 1989, 28 (07): : 592 - 594
  • [8] A Valuable Synthetic Route to the Enantiopure Functionalized N-Substituted Aziridines
    李森兰
    郭金波
    郁兆莲
    陈庆华
    [J]. Chinese Journal of Chemistry, 2004, (04) : 384 - 389
  • [9] A valuable synthetic route to the enantiopure functionalized N-substituted aziridines
    Li, SL
    Guo, JB
    Yu, ZL
    Chen, QH
    [J]. CHINESE JOURNAL OF CHEMISTRY, 2004, 22 (04) : 384 - 389
  • [10] GEM-CYCLODIALKYLATION - A FACILE SYNTHETIC ROUTE TO N-SUBSTITUTED HETEROCYCLES
    HARGIS, DC
    SHUBKIN, RL
    [J]. TETRAHEDRON LETTERS, 1990, 31 (21) : 2991 - 2994
12345