Selective C-3 monochlorination of 2-methylchromones and chromone-2-carboxaldehydes

被引：12

作者：

Jagadeesh, SG ^{[1
]}

Krupadanam, GLD ^{[1
]}

Srimannarayana, G ^{[1
]}

机构：

[1] Osmania Univ, Dept Chem, Hyderabad 500007, Andhra Pradesh, India

来源：

SYNTHETIC COMMUNICATIONS | 1998年 / 28卷 / 20期

关键词：

D O I：

10.1080/00397919808004936

中图分类号：

O62 [有机化学];

学科分类号：

070303 [有机化学]; 081704 [应用化学];

摘要：

2-methylchromones (1a-d) and chromone-2-carboxaldehydes (3a-d) on reaction with aq. NaOCl yield selectively 3-chlorochromones (2a-d and 4a-d) in yield 61-93%.

引用

页码：3827 / 3833

页数：7

共 8 条

[1]

KIICHIITO, 1988, J HETEROCYCLIC CHEM, V25, P511

[2]

MARCHANT JR, 1969, TETRAHEDRON LETT, V41, P3589

[3]

MARCHANT JR, 1971, TETRAHEDRON, V27, P4837

[4]

STUDIES ON ANTIANAPHYLACTIC AGENTS .3. NOVEL CONVERSION REACTION OF 4-OXO-4H-1-BENZOPYRAN-3-CARBOXALDEHYDES TO 3-HALOGENOCHROMONES [J].

NOHARA, A ;

UKAWA, K ;

SANNO, Y .

TETRAHEDRON, 1974, 30 (19) :3563-3568

[5]

NOHARA A, 1973, TETRAHEDRON LETT, V22, P1999

[6]

ZUR SYNTHESE VON CHLORCHROMONEN [J].

ROEDIG, A ;

SCHODEL, S .

CHEMISCHE BERICHTE-RECUEIL, 1964, 97 (01) :80-&

[7]

SCHGAL ID, 1954, J CHEM IND RES B, V13, P160

[8]

ZERMANOWSKY Z, 1963, ROEZMKI CHEM, V37, P413

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