BR+-INDUCED CYCLIZATION OF GAMMA,DELTA-UNSATURATED KETONES - A NEW APPROACH TO BROMOPYRAN DERIVATIVES

被引：7

作者：

ANTONIOLETTI, R

MAGNANTI, S

SCETTRI, A

机构：

[1] Centro C.N.R. di Studio per la Chimica delle Sostanze Organiche Naturali, Dipartimento di Chimica, Università di Roma La Sapienza, 00185 Roma, P.le Aldo Moro

来源：

TETRAHEDRON LETTERS | 1994年 / 35卷 / 16期

关键词：

D O I：

10.1016/S0040-4039(00)77188-7

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

3,5-dibromo-3,4-dihydro-2,2-dimethyl-(2H)-pyrans 2, are obtained through a simple and new procedure involving a bromoenol-etherification of gamma,delta-unsaturated ketones 1; the key step is the formation of mono-bromopyran intermediate A.

引用

页码：2619 / 2620

页数：2

共 12 条

[1] A CONVENIENT APPROACH TO FURAN-DERIVATIVES BY I-2-INDUCED CYCLIZATION OF 2-ALKENYL SUBSTITUTED 1,3-DICARBONYL COMPOUNDS
ANTONIOLETTI, R
BONADIES, F
SCETTRI, A
[J]. TETRAHEDRON LETTERS, 1988, 29 (39) : 4987 - 4990
[2] BARLUENGA J, 1990, SYNLETT, P673
[3] Bartlett P. A., 1984, ASYMMETRIC SYNTHESIS, V3, P411
[4] STEREOCONTROLLED CYCLOFUNCTIONALIZATIONS OF DOUBLE-BONDS THROUGH HETEROCYCLIC INTERMEDIATES
CARDILLO, G
ORENA, M
[J]. TETRAHEDRON, 1990, 46 (10) : 3321 - 3408
[5] CHENEVERT R, 1982, SYNTHESIS-STUTTGART, P75
[6] SYNTHESIS AND SYNTHETIC UTILITY OF HALOLACTONES
DOWLE, MD
DAVIES, DI
[J]. CHEMICAL SOCIETY REVIEWS, 1979, 8 (02) : 171 - 197
[7] EVANS RD, 1988, SYNTHESIS-STUTTGART, P862
[8] HARDING KE, 1991, COMPREHENSIVE ORGANI, V4, P663
[9] NUCLEOPHILE-SELECTIVE IODOCYCLIZATIONS - BUTYROLACTONE VERSUS TETRAHYDROFURAN FORMATION
KURTH, MJ
BEARD, RL
OLMSTEAD, M
MACMILLAN, JG
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1989, 111 (10) : 3712 - 3717
[10] STEREOCONTROLLED SYNTHESIS OF CIS-2,5-DISUBSTITUTED TETRAHYDROFURANS AND CIS-LINALYL AND TRANS-LINALYL OXIDES
RYCHNOVSKY, SD
BARTLETT, PA
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1981, 103 (13) : 3963 - 3964

← 1 2 →