4-ALKOXY-3-CYANO-2(1H)-PYRIDONES AND 5-ALKOXYISOXAZOLES AND THEIR ARYL SUBSTITUTED AND ANNULATED DERIVATIVES FROM ACYLKETENE O,S-ACETALS

被引：0

作者：

PURKAYASTHA, ML ^{[1
]}

BHAT, L ^{[1
]}

ILA, H ^{[1
]}

JUNJAPPA, H ^{[1
]}

机构：

[1] NE HILL UNIV,DEPT CHEM,SHILLONG 793003,MEGHALAYA,INDIA

来源：

SYNTHESIS-STUTTGART | 1995年 / 06期

关键词：

ACYLKETENE O; S-ACETALS; 4-ALKOXY-3-CYANO-2(1H)-PYRIDONES; 5-ALKOXYISOXAZOLES; ACYLKETENE DITHIOACETALS; CYCLOCONDENSATION;

D O I：

暂无

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The title pyridones 2 and 5 and the isoxazoles 3 and 6 are obtained in moderate to good yields by cyclocondensation of the appropriate acylketene O,S-acetals 1 or 4 with cyanoacetamide and hydroxylamine hydrochloride, respectively, in the presence of sodium alkoxide/alkanol.

引用

页码：641 / 643

页数：3

共 15 条

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CHAUHAN, SMS
JUNJAPPA, H
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[2] KETENE-S,S-ACETALS .5. REACTIONS OF ALPHA-KETO AND ALPHA-CYANOKETENE-S,S-ACETALS WITH GUANIDINE AND THIOUREA - NEW GENERAL SYNTHESIS OF ALKOXY-PYRIMIDINES
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[6] KANEKO C, 1986, CHEM PHARM BULL, V34, P3658
[7] STUDIES IN ISOXAZOLE CHEMISTRY .3. PREPARATION AND LITHIATION OF 3,5-DISUBSTITUTED ISOXAZOLES
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[J]. CANADIAN JOURNAL OF CHEMISTRY, 1970, 48 (09): : 1371 - &
[8] SYNTHESIS OF ISOXAZOLINES AND ISOXAZOLES FROM ALDOXIMES BY THE USE OF SODIUM BROMITE WITH ORGANOTIN HALIDE
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NAKAMURA, H
KAGEYAMA, T
URATA, Y
[J]. TETRAHEDRON LETTERS, 1989, 30 (30) : 3987 - 3990
[9] STUDIES ON HETEROCYCLIC CHEMISTRY .5. A NOVEL SYNTHESIS OF 1-AZIRINES HAVING AN ESTER FUNCTION AND OBSERVATION OF THEIR MASS SPECTRA
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NAKANO, A
[J]. TETRAHEDRON, 1970, 26 (02) : 453 - &
[10] PURKAYASTHA ML, 1989, SYNTHESIS-STUTTGART, P20

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