STUDIES IN SIGMATROPIC REARRANGEMENT - REARRANGEMENT OF 4-(4-ALKLYLSUBSTITUTED ARYLOXYBUT-2-YNYLOXY)[1]BENZOPYRAN-2-ONES

被引：0

作者：

MAJUMDAR, KC

DAS, DP

JANA, GH

KHAN, AT

机构：

来源：

INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY | 1994年 / 33卷 / 02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：

4-(4-o-Cresoxybut-2-ynyloxy)[1]benzopyran-2-one (3a) and 4-(4-p-cresoxybut-2-ynyloxy)[1]benzopyran-2-one (3b) give products 5 and 6 respectively both containing exocyclic double bond inaddition to normal products, 4-aryloxymethylpyrano[3, 2-c][1]benzopyran-5(2H)-ones (4a and 4b). Other 4-(4-alkyl substituted aryloxybut-2-ynyloxy)[1]benzopyran-2-one (3c-f) furnish exclusively the 4-aryloxymethylpyrano[3,2-c][1]benzopyran-5(2H)-ones (4c-f).

引用

页码：120 / 124

页数：5

共 50 条

[1] Studies in sigmatropic rearrangement:: thermal rearrangement of 3-(4′-aryloxybut-2-ynyloxy)thiochromen-4-ones
Majumdar, KC
Roy, B
JOURNAL OF CHEMICAL RESEARCH, 2001, (12) : 538 - 539
[2] Synthesis of linear heterocycles: Thermal sigmatropic rearrangement of 4-(4-aryloxybut-2-ynyloxy)[1]benzopyran-2-thiones
Majumdar, K.C.
Jana, G.H.
Synthesis, 2001, (06) : 924 - 928
[3] Synthesis of linear heterocycles: Thermal sigmatropic rearrangement of 4-(4-aryloxybut-2-ynyloxy)[1]benzopyran-2-thiones
Majumdar, KC
Jana, GH
SYNTHESIS-STUTTGART, 2001, (06): : 924 - 928
[4] Synthesis of bioactive heterocycles:: Thermal [3,3] sigmatropic rearrangement of 4-(4′-aryloxybut-2-ynyloxy)-6-methyl-2-pyrones
Majumdar, KC
Ghosh, S
Kundu, AK
SYNTHETIC COMMUNICATIONS, 2002, 32 (05) : 753 - 758
[5] Regioselective synthesis of pentacyclic polyheterocycles:: Sequential [3,3] sigmatropic rearrangement of 4-(4'-Aryloxybut-2'-ynyloxy)-1-phenyl-1,8-naphthyridin-2(1H)-ones
Majumdar, Krishna C.
Rafique-ul-Islam
JOURNAL OF HETEROCYCLIC CHEMISTRY, 2007, 44 (04) : 871 - 875
[6] Synthesis of potentially bioactive heterocycles:: Thermal [3,3]sigmatropic rearrangement of 4-(4′-aryloxybut-2′-ynyloxy)-6-methyl-2-pyridone
Majumdar, KC
Rahaman, H
Roy, B
SYNTHETIC COMMUNICATIONS, 2006, 36 (06) : 809 - 816
[7] STUDIES OF [3,3]SIGMATROPIC REARRANGEMENTS - REARRANGEMENT OF 3-(4-PARA-TOLYLOXYBUT-2-YNYLOXY)[1]BENZOPYRAN-2-ONE
MAJUMDAR, KC
DE, RN
KHAN, AT
CHATTOPADHYAY, SK
DEY, K
PATRA, A
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1988, (12) : 777 - 779
[8] Studies of bioactive heterocycles: facile thio-Claisen rearrangement of propargylthio[1]benzopyran-2-ones
Majumdar, KC
Ghosh, SK
TETRAHEDRON LETTERS, 2002, 43 (11) : 2115 - 2117
[9] STUDIES IN [3,3]SIGMATROPIC REARRANGEMENTS - REARRANGEMENT OF 4-METHYL-7-(PARA-TOLYLOXYBUT-2-YNYLOXY)[1]BENZOPYRAN-2-ONE
MAJUMDAR, KC
GUPTA, AK
INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY, 1990, 29 (08): : 752 - 756
[10] Studies in sigmatropic rearrangement:: Thermal rearrangement of 3-prop-2′-ynyloxybenzothiapyran-4-ones
Majumdar, KC
Roy, B
SYNTHETIC COMMUNICATIONS, 2002, 32 (19) : 2985 - 2990

← 1 2 3 4 5 →