Bromination of o-hydroxyacetophenones and o-hydroxychalcones with potassium bromide-potassium bromate

被引：0

作者：

Hussain, KF ^{[1
]}

Vijayvargiya, D ^{[1
]}

Hussain, S ^{[1
]}

Verma, BL ^{[1
]}

机构：

[1] ML SUKHADIA UNIV,COLL SCI,DEPT CHEM,UDAIPUR 313002,INDIA

来源：

ASIAN JOURNAL OF CHEMISTRY | 1996年 / 8卷 / 04期

关键词：

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Bromination of o-hydroxyacetophenones (I) and 2'-hydroxychalcones (IV) with KBr-KBrO3 in glacial acetic acid medium gave corresponding nuclear substituted 3-bromo-2-hydroxy-acetophenone (II) and 3'bromo-2'-hydroxychalcone(V) derivatives respectively. However, bromination of 2'-hydroxy- 5'-methylchalcone (IVc) resulted in 8-bromo-6-methylflavanone (VI). All the synthesised compounds have been characterised by elemental analysis and spectral data.

引用

页码：703 / 706

页数：4

共 19 条

[1]

BANERJEE A, 1981, J INDIAN CHEM SOC, V58, P985

[2]

BANERJEE A, 1980, J INDIAN CHEM SOC, V57, P640

[3]

BANERJEE A, 1979, J INDIAN CHEM SOC, V56, P518

[4]

BANERJEE A, 1976, J INDIAN CHEM SOC, V56, P985

[5]

BORKHADE KT, 1970, INDIAN J CHEM, V8, P798

[6] THE BROMINATION OF ORTHO-HYDROXYARYL AND PARA-HYDROXYARYL KETONES [J].

BUUHOI, NP ;

LAVIT, D .

JOURNAL OF THE CHEMICAL SOCIETY, 1955, :18-20

[7]

DHAR DN, 1961, J INDIAN CHEM SOC, V38, P823

[8]

DIOFODE KB, 1964, J ORG CHEM, V29, P2025

[9]

DOIFODE KB, 1962, J ORG CHEM, V27, P2665, DOI 10.1021/jo01054a523

[10] CHALCONE DIHALIDES .5. ACID CATALYZED CYCLIZATION OF 4,6' DIALKOXYCHALCONE DIBROMIDES TO 3-BROMOFLAVANONES [J].

DONNELLY, JA .

TETRAHEDRON, 1973, 29 (17) :2585-2588

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