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Volumn 66, Issue 48, 2010, Pages 9389-9395

Remarkable enhancement effect of potassium tert-butoxide/THF solution in base-induced Sommelet-Hauser rearrangements

Author keywords

Amino acid; Ammonium salt; Pericyclic reaction; Rearrangement; Ylide

Indexed keywords

ACETIC ACID DERIVATIVE; AMINE; AMINO ACID; AMMONIA; BASE; BENZYL 2 (DIMETHYLAMINO) 3 PHENYLPROPANOIC ACID; BENZYL(DIMETHYLAMINO)(2 METHYLPHENYL)ACETIC ACID; N,N DIETHYL 2 DIMETHYLAMINO 2 (2 METHYLPHENYL)ACETAMIDE; N,N DIETHYL 2 DIMETHYLAMINO 3 PHENYLPROPANAMIDE; N,N DIMETHYL 1 (2 METHYLPHENYL) 2 OXO 2 (PYRROLIDIN 1 YL)ETHANAMINE; POTASSIUM DERIVATIVE; POTASSIUM TERT BUTOXIDE; PROPIONIC ACID DERIVATIVE; TERT BUTYL (3 CHLORO 2 METHYLPHENYL)(DIMETHYLAMINO)ACETIC ACID; TERT BUTYL (4 CHLORO 2 METHYLPHENYL)(DIMETHYLAMINO)ACETIC ACID; TERT BUTYL (5 CHLORO 2 METHYLPHENYL)(DIMETHYLAMINO)ACETIC ACID; TERT BUTYL (DIMETHYLAMINO)(2 METHYLPHENYL)ACETIC ACID; TERT BUTYL (DIMETHYLAMINO)(2,3 DIMETHYLPHENYL)ACETIC ACID; TERT BUTYL (DIMETHYLAMINO)(2,4 DIMETHYLPHENYL)ACETIC ACID; TERT BUTYL 2 (DIMETHYLAMINO) 3 (2 METHYLPHENYL)PROPANOIC ACID; TERT BUTYL 2 (DIMETHYLAMINO) 3 (3 METHYLPHENYL)PROPANOIC ACID; TERT BUTYL 2 (DIMETHYLAMINO) 3 (4 METHOXYPHENYL)PROPANOIC ACID; TERT BUTYL 2 (DIMETHYLAMINO) 3 (4 METHYLPHENYL)PROPANOIC ACID; TERT BUTYL 2 (DIMETHYLAMINO) 3 PHENYLPROPANOIC ACID; TERT BUTYL 3 (2 CHLOROPHENYL) 2 (DIMETHYLAMINO)PROPANOIC ACID; TERT BUTYL 3 (3 CHLOROPHENYL) 2 (DIMETHYLAMINO)PROPANOIC ACID; TERT BUTYL 3 (4 CHLOROPHENYL) 2 (DIMETHYLAMINO)PROPANOIC ACID; TERT BUTYL(DIMETHYLAMINO)(2,5 DIMETHYLPHENYL)ACETIC ACID; TERT BUTYL(DIMETHYLAMINO)(5 METHOXY 2 METHYLPHENYL)ACETIC ACID; TETRAHYDROFURAN; UNCLASSIFIED DRUG;

EID: 78049458125     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tet.2010.09.105     Document Type: Article
Times cited : (17)

References (32)
  • 20
    • 0009272467 scopus 로고
    • Studies about competition between base-induced [1,2] Stevens and S-H rearrangements: A. Jończyk, and D. Lipiak J. Org. Chem. 56 1991 6933 6937
    • (1991) J. Org. Chem. , vol.56 , pp. 6933-6937
    • Jończyk, A.1    Lipiak, D.2
  • 24
    • 78049453435 scopus 로고    scopus 로고
    • The purity of solid t-BuOK did not affect the results. Both the reagent grade (97% purity) and the sublimed grade (99% purity) afforded practically identical results
    • The purity of solid t-BuOK did not affect the results. Both the reagent grade (97% purity) and the sublimed grade (99% purity) afforded practically identical results.
  • 25
    • 78049464186 scopus 로고    scopus 로고
    • Commercially available from Aldrich or TCI. Both the reagents afforded practically identical results
    • Commercially available from Aldrich or TCI. Both the reagents afforded practically identical results.
  • 26
    • 0001407376 scopus 로고
    • Previously, it was reported that both the solid and THF-based solution of t-BuOK form tetramers. See: P. Schmidt, L. Lochmann, and B. Schneider J. Mol. Struct. 9 1971 403 411
    • (1971) J. Mol. Struct. , vol.9 , pp. 403-411
    • Schmidt, P.1    Lochmann, L.2    Schneider, B.3
  • 28
    • 78049467931 scopus 로고    scopus 로고
    • We attempted the reactions of amino ketone-derived ammonium salts (tert-butyl and phenyl ketones) using t-BuOK/THF solution instead of ester 1a and amide 4a. However, the corresponding S-H products were not obtained. Stabilization of enolate form B would inhibit S-H rearrangement
    • We attempted the reactions of amino ketone-derived ammonium salts (tert-butyl and phenyl ketones) using t-BuOK/THF solution instead of ester 1a and amide 4a. However, the corresponding S-H products were not obtained. Stabilization of enolate form B would inhibit S-H rearrangement.
  • 30
    • 0026503213 scopus 로고
    • Studies about substituent effects on the benzyl group in fluoride-induced S-H rearrangement were reported. See: T. Tanaka, N. Shirai, and Y. Sato Chem. Pharm. Bull. 40 1992 518 520
    • (1992) Chem. Pharm. Bull. , vol.40 , pp. 518-520
    • Tanaka, T.1    Shirai, N.2    Sato, Y.3
  • 32
    • 78049472612 scopus 로고    scopus 로고
    • 1H NMR comparison with the (S)-authentic sample. The configuration of 8a and 9a were determined by the analogy with 8b and 9b. For experimental details, see Supplementary data
    • 1H NMR comparison with the (S)-authentic sample. The configuration of 8a and 9a were determined by the analogy with 8b and 9b. For experimental details, see Supplementary data.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.