Modified chiral triazolium salts for enantioselective benzoin cyclization of enolizable keto-aldehydes: Synthesis of (+)-sappanone B

Organic Letters

Volumn 9, Issue 14, 2007, Pages 2713-2716

  Takikawa, Hiroshi ^a   Suzuki, Keisuke ^a  

^a TOKYO INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

ABROTANONE; ALDEHYDE; BENZOIN; DITERPENE; ETHYLAMINE; TRIAZOLE DERIVATIVE; TRIETHYLAMINE; UNCLASSIFIED DRUG;

ARTICLE; CAESALPINIA; CATALYSIS; CHEMISTRY; CONFORMATION; CYCLIZATION; STEREOISOMERISM; SYNTHESIS; X RAY CRYSTALLOGRAPHY;

ALDEHYDES; BENZOIN; CAESALPINIA; CATALYSIS; CRYSTALLOGRAPHY, X-RAY; CYCLIZATION; DITERPENES; ETHYLAMINES; MOLECULAR CONFORMATION; STEREOISOMERISM; TRIAZOLES;

EID: 34547424960     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol070929p     Document Type: Article

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28. Sodium dodecanethiolate was prepared by mixing dodecanethiol with sodium methoxide (28 wt % in MeOH) followed by evaporation (see the Supporting Information). For odorless thiols and sulfides, see: Nishide, K.; Ohsugi, S.; Miyamoto, T.; Kumar, K.; Node, M. Monatsh. Chem. 2004, 135, 189-200.
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31. 6-acetone. See the Supporting information.