Mechanistic insights into the factors determining exo-endo selectivity in the Lewis acid-catalyzed Diels-Alder reaction of 1,3-dienes with 2-cycloalkenones

被引:56
作者
Ge, M [1 ]
Stoltz, BM [1 ]
Corey, EJ [1 ]
机构
[1] Harvard Univ, Dept Chem & Biol Chem, Cambridge, MA 02138 USA
关键词
D O I
10.1021/ol0060026
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
We adduce evidence that the asynchronous, Lewis acid-catalyzed Diets-Alder reaction of 2-cycloalkenones with nonsimple alpha,beta-enones can proceed via transition states in which the 1,3-diene subunit is skewed, i.e., nonplanar, with profound effects on the ratio of exo and endo addition products.
引用
收藏
页码:1927 / 1929
页数:3
相关论文
共 12 条
[1]   DIELS-ALDER REACTIONS OF CYCLOALKENONES .14. ENDO DIASTEREOSELECTIVITY OF 2-CYCLOHEXENONES IN REACTIONS WITH CYCLOPENTADIENE [J].
ANGELL, EC ;
FRINGUELLI, F ;
GUO, M ;
MINUTI, L ;
TATICCHI, A ;
WENKERT, E .
JOURNAL OF ORGANIC CHEMISTRY, 1988, 53 (18) :4325-4328
[2]   DIELS-ALDER REACTIONS OF CYCLOALKENONES .10. ENDO EXO DIASTEREOSELECTIVITY OF 2-CYCLOHEXENONES [J].
ANGELL, EC ;
FRINGUELLI, F ;
MINUTI, L ;
PIZZO, F ;
PORTER, B ;
TATICCHI, A ;
WENKERT, E .
JOURNAL OF ORGANIC CHEMISTRY, 1986, 51 (14) :2649-2652
[3]   The application of the formyl C-H--O hydrogen bond postulate to the understanding of enantioselective reactions involving chiral boron Lewis acids and aldehydes [J].
Corey, EJ ;
Rohde, JJ .
TETRAHEDRON LETTERS, 1997, 38 (01) :37-40
[4]  
Corey EJ, 1998, ANGEW CHEM INT EDIT, V37, P388, DOI 10.1002/(SICI)1521-3773(19980302)37:4<388::AID-ANIE388>3.0.CO
[5]  
2-V
[6]   The formyl C-H--O hydrogen bond as a key to transition-state organization in enantioselective allylation, aldol and Diels-Alder reactions catalyzed by chiral Lewis acids. [J].
Corey, EJ ;
BarnesSeeman, D ;
Lee, TW .
TETRAHEDRON LETTERS, 1997, 38 (10) :1699-1702
[7]   ON CATALYZED ADDITIONS OF TRANS-PIPERYLENE TO 2-CYCLOHEXENONES - A SHORT ROUTE TO POTENTIAL PRECURSORS OF EREMOPHILANE SESQUITERPENOIDS [J].
DAS, J ;
KAKUSHIMA, M ;
VALENTA, Z ;
JANKOWSKI, K ;
LUCE, R .
CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1984, 62 (03) :411-416
[8]   Chiral Lewis acid catalysts in Diels-Alder cycloadditions: Mechanistic aspects and synthetic applications of recent systems [J].
Dias, LC .
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY, 1997, 8 (04) :289-332
[9]   Density functional theory study of a Lewis acid catalyzed Diels-Alder reaction.: The butadiene plus acrolein paradigm [J].
García, JI ;
Martínez-Merino, V ;
Mayoral, JA ;
Salvatella, L .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (10) :2415-2420
[10]   ACCELERATION AND SELECTIVITY ENHANCEMENT OF DIELS-ALDER REACTIONS BY SPECIAL AND CATALYTIC METHODS [J].
PINDUR, U ;
LUTZ, G ;
OTTO, C .
CHEMICAL REVIEWS, 1993, 93 (02) :741-761