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Volumn , Issue 19, 2008, Pages 3031-3035

N-Tosyl-(Sa)-binam-L-prolinamide as highly efficient bifunctional organocatalyst for the general enantioselective solvent-free aldol reaction

Author keywords

Aldol reactions; Enantio selective; Ketone; Organocatalyzed; Solvent free

Indexed keywords

4 NITROBENZALDEHYDE; ALDEHYDE; AMIDE; BENZOIC ACID; CYCLOHEXANONE; KETONE; N TOSYL BINAM LEVO PROLINAMIDE; UNCLASSIFIED DRUG;

EID: 57649120787     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-0028-1087349     Document Type: Article
Times cited : (57)

References (48)
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    • For comprehensive books and selected reviews, see: (a) Dalko, P. I.; Moisan, L. Angew. Chem. Int. Ed. 2004, 43, 5138.
    • (2004) Angew. Chem. Int. Ed , vol.43 , pp. 5138
    • Dalko, P.I.1    Moisan, L.2
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    • Dalko, P. I, Ed, Wiley-VCH: Weinheim
    • (k) Enantioselective Organocatalysis; Dalko, P. I., Ed.; Wiley-VCH: Weinheim, 2007.
    • (2007) Enantioselective Organocatalysis
  • 12
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    • (l) List, B. Chem. Rev. 2007, 107, 5413.
    • (2007) Chem. Rev , vol.107 , pp. 5413
    • List, B.1
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    • Corrigendum: Guillena, G.; Hita, M. C.; Nájera, C. Tetrahedron: Asymmetry 2007, 18, 1031.
    • (d) Corrigendum: Guillena, G.; Hita, M. C.; Nájera, C. Tetrahedron: Asymmetry 2007, 18, 1031.
  • 27
    • 34248670845 scopus 로고    scopus 로고
    • Corrigendum: Guillena, G.; Hita, M. C.; Nájera, C. Tetrahedron: Asymmetry 2007, 18, 1030.
    • (b) Corrigendum: Guillena, G.; Hita, M. C.; Nájera, C. Tetrahedron: Asymmetry 2007, 18, 1030.
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    • Corrigendum: Guillena, G.; Hita, M. C.; Nájera, C. Arkivoc 2007, (i), 146.
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  • 34
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    • For some other organacatalyzed enantioselective aldol reactions under solvent-free conditions, see: a
    • For some other organacatalyzed enantioselective aldol reactions under solvent-free conditions, see: (a) Rodríguez, B.; Rantanen, T.; Bolm, C. Angew. Chem. Int. Ed. 2006, 45, 6924.
    • (2006) Angew. Chem. Int. Ed , vol.45 , pp. 6924
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    • Representative Experimental Procedure: Anhydrous Solvent-Free Conditions: To a mixture of the corresponding aldehyde (0.25 mmol, catalyst 2 (0.0125 mmol, 6.5 mg) and benzoic acid (0.0025 mmol, 0.3 mg) at 0°C was added the corresponding ketone (0.5 mmol, The reaction was stirred until the aldehyde was consumed (monitored by TLC, Then, the crude product was diluted in CH2Cl2 (10 mL, silica gel was added and the solvent was evaporated in vacuo. The resulting residue was purified by flash chromatography (hexanes-EtOAc) to yield the pure aldol product. Wet Solvent-Free Conditions: To a mixture of the corresponding aldehyde (0.25 mmol, catalyst 2 (0.0125 mmol, 6.5 mg, benzoic acid (0.0025 mmol, 0.3 mg, H2O (33 μL) was added at 0°C followed by the corresponding ketone (0.5 mmol, The reaction was stirred until the aldehyde was consumed. The crude product was diluted in CH2Cl2 10 mL, MgSO
    • 4 was added and filtered. To the filtrate, silica gel was added and the above purification procedure was followed to obtain the aldol product.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.