The first direct transformation of 2,2′-dihydroxychalcones into coumestans

被引：17

作者：

Kamara, BI ^{[1
]}

Brandt, EV ^{[1
]}

Ferreira, D ^{[1
]}

机构：

[1] Univ Orange Free State, Dept Chem, ZA-9300 Bloemfontein, South Africa

来源：

TETRAHEDRON | 1999年 / 55卷 / 03期

关键词：

chalcones; oxidation; rearrangement; coumestans;

D O I：

10.1016/S0040-4020(98)01076-X

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Three coumestans, flemichapparin, medicagol and sophoracoumestan B, are synthesised by direct reaction of the analogous 2,2'-dihydroxychalcones with thallium(III) nitrate in methanol. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：861 / 868

页数：8

共 24 条

[1] Alkali-insoluble phenols [J].

Adams, R .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1919, 41 :247-270

[2] NEW PTEROCARPAN AND COUMESTAN IN ROOTS OF FLEMINGIA-CHAPPAR [J].

ADITYACHAUDHURY, N ;

GUPTA, PK .

PHYTOCHEMISTRY, 1973, 12 (02) :425-428

[3] DETERMINATION OF URINARY LIGNANS AND PHYTOESTROGEN METABOLITES, POTENTIAL ANTIESTROGENS AND ANTICARCINOGENS, IN URINE OF WOMEN ON VARIOUS HABITUAL DIETS [J].

ADLERCREUTZ, H ;

FOTSIS, T ;

BANNWART, C ;

WAHALA, K ;

MAKELA, T ;

BRUNOW, G ;

HASE, T .

JOURNAL OF STEROID BIOCHEMISTRY AND MOLECULAR BIOLOGY, 1986, 25 (5B) :791-797

[4] AN EFFICIENT SYNTHESIS OF COUMESTANS - A PROBABLE BIOGENETIC APPROACH [J].

BHALERAO, UT ;

MURALIKRISHNA, C ;

PANDEY, G .

SYNTHETIC COMMUNICATIONS, 1989, 19 (7-8) :1303-1307

[5]

BICKOFF EM, 1969, TECHNICAL B USDA, V1408

[6]

BURNS DT, 1984, PHYTOCHEMISTRY, V23, P167, DOI 10.1016/0031-9422(84)83100-3

[7]

Dewick P.M., 1994, FLAVONOIDS ADV RES 1, P117

[8]

DEWICK PM, 1980, FLAVONOIDS ADV RES 1, P125

[9] SYNTHESIS OF SOPHOROL, VIOLANONE, LONCHOCARPAN, CLAUSSEQUINONE, PHILEN-OPTERAN, LEIOCALYCIN, AND SOME OTHER NATURAL ISOFLAVONOIDS BY OXIDATIVE REARRANGEMENT OF CHALCONES WITH THALLIUM(III) NITRATE [J].

FARKAS, L ;

GOTTSEGEN, A ;

NOGRADI, M ;

ANTUS, S .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1974, (02) :305-312

[10] NEW PTEROCARPENES FROM BRYA-EBENUS [J].

FERREIRA, MA ;

MOIR, M ;

THOMSON, RH .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1974, (21) :2429-2435

← 1 2 3 →