P-BEMP: A new efficient and commercially available user-friendly and recyclable heterogeneous organocatalyst for the Michael addition of 1,3-dicarbonyl compounds

Synthesis

Volumn , Issue 6, 2004, Pages 923-927

  Bensa, David ^a   Constantieux, Thierry ^a   Rodriguez, Jean ^a  

^a AIX MARSEILLE UNIVERSITY   (France)

Author keywords

1,3 dicarbonyls; Heterogeneous catalysis; Michael addition; Polymer supported iminophosphoranes

Indexed keywords

ADDITION REACTIONS; CATALYSTS; FILTRATION; PHOSPHORUS COMPOUNDS; SOLVENTS; THERMAL EFFECTS;

CHEMICAL PURITY; MICHAEL ADDITION;

SYNTHESIS (CHEMICAL);

CARBONYL DERIVATIVE; PHOSPHORANE DERIVATIVE; POLYSTYRENE;

ARTICLE; ATMOSPHERE; CATALYSIS; CHEMICAL REACTION; FILTRATION; MICHAEL ADDITION; RECYCLING; ROOM TEMPERATURE;

EID: 2342550664     PISSN: 00397881     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2004-815996     Document Type: Article

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66. 1 BEMP and related BTPP iminophosphoranes used in large excess have been shown to promote some specific Michael additions with ethyl acetoacetate, nitroarenes and Schiff base esters: (a) Richter, H.; Walk, T.; Höltzel, A.; Jung, G. J. Org. Chem. 1999, 64, 1362. (b) See also: Lash, T.; Thompson, M. L.; Werner, T. M.; Spence, J. D. Synlett 2000, 213. (c) O'Donnell, M. J.; Delgado, F.; Domínguez, E.; de Blas, J.; Scott, W. L. Tetrahedron: Asymmetry 2001, 12, 821. (d) For utilization of a related synthetic P1 polymer supported iminophosphorane base in the acylation of alcohols, see: Ilankumaran, P.; Verkade, J. G. J. Org. Chem. 1999, 64, 9063.
67. 1 BEMP and related BTPP iminophosphoranes used in large excess have been shown to promote some specific Michael additions with ethyl acetoacetate, nitroarenes and Schiff base esters: (a) Richter, H.; Walk, T.; Höltzel, A.; Jung, G. J. Org. Chem. 1999, 64, 1362. (b) See also: Lash, T.; Thompson, M. L.; Werner, T. M.; Spence, J. D. Synlett 2000, 213. (c) O'Donnell, M. J.; Delgado, F.; Domínguez, E.; de Blas, J.; Scott, W. L. Tetrahedron: Asymmetry 2001, 12, 821. (d) For utilization of a related synthetic P1 polymer supported iminophosphorane base in the acylation of alcohols, see: Ilankumaran, P.; Verkade, J. G. J. Org. Chem. 1999, 64, 9063.
68. 1 BEMP and related BTPP iminophosphoranes used in large excess have been shown to promote some specific Michael additions with ethyl acetoacetate, nitroarenes and Schiff base esters: (a) Richter, H.; Walk, T.; Höltzel, A.; Jung, G. J. Org. Chem. 1999, 64, 1362. (b) See also: Lash, T.; Thompson, M. L.; Werner, T. M.; Spence, J. D. Synlett 2000, 213. (c) O'Donnell, M. J.; Delgado, F.; Domínguez, E.; de Blas, J.; Scott, W. L. Tetrahedron: Asymmetry 2001, 12, 821. (d) For utilization of a related synthetic P1 polymer supported iminophosphorane base in the acylation of alcohols, see: Ilankumaran, P.; Verkade, J. G. J. Org. Chem. 1999, 64, 9063.
69. 1 BEMP and related BTPP iminophosphoranes used in large excess have been shown to promote some specific Michael additions with ethyl acetoacetate, nitroarenes and Schiff base esters: (a) Richter, H.; Walk, T.; Höltzel, A.; Jung, G. J. Org. Chem. 1999, 64, 1362. (b) See also: Lash, T.; Thompson, M. L.; Werner, T. M.; Spence, J. D. Synlett 2000, 213. (c) O'Donnell, M. J.; Delgado, F.; Domínguez, E.; de Blas, J.; Scott, W. L. Tetrahedron: Asymmetry 2001, 12, 821. (d) For utilization of a related synthetic P1 polymer supported iminophosphorane base in the acylation of alcohols, see: Ilankumaran, P.; Verkade, J. G. J. Org. Chem. 1999, 64, 9063.
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