메뉴 건너뛰기




Volumn 53, Issue 36, 1997, Pages 12237-12247

4-Penteneselenothioic acid S-alkyl esters: Synthesis via the seleno-Claisen rearrangement

Author keywords

[No Author keywords available]

Indexed keywords

ORGANOSELENIUM DERIVATIVE; ORGANOSULFUR DERIVATIVE;

EID: 0030880668     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4020(97)00556-5     Document Type: Article
Times cited : (15)

References (35)
  • 14
    • 0343733202 scopus 로고    scopus 로고
    • note
    • 10 and seleno-Claisen rearrangement is not easy, the latter one proceeds as smoothly as the former one even if a selenocarbonyl group, which has been believed to be an unstable functional group, is formed in the latter case.
  • 18
  • 19
    • 0000217402 scopus 로고
    • Trost, B. M., Fleming, I., Eds.; Pergamon: Oxford
    • Wipf, P. in Comprehensive Organic Syntheses; Trost, B. M., Fleming, I., Eds.; Pergamon: Oxford, 1991; Vol. 5, p. 827.
    • (1991) Comprehensive Organic Syntheses , vol.5 , pp. 827
    • Wipf, P.1
  • 20
    • 0342862611 scopus 로고    scopus 로고
    • note
    • In the latter step, 2-butenyl group can approach to a vinyl group (Equation Presented) from the side close to either methyl group or vinyl group if 20 adopts an eclipse comformation through the bond depicted with bold line as shown right.
  • 21
    • 0342428009 scopus 로고    scopus 로고
    • note
    • 14 The stereochemistry of 22 was further confirmed by a phase sensitive NOESY spectrum.
  • 22
    • 26344478367 scopus 로고
    • Georg Thieme Publishers; Stuttgart
    • Kagan, H. B. Ed., Stereochemistry, Georg Thieme Publishers; Stuttgart: 1977; Vol. 1-2, p. 63.
    • (1977) Stereochemistry , vol.1-2 , pp. 63
    • Kagan, H.B.1
  • 23
    • 0343733199 scopus 로고    scopus 로고
    • note
    • On the basis of a phase sensitive NOESY spectrum the product 23 was tentatively assigned to be a threo isomer.
  • 26
    • 0343733198 scopus 로고    scopus 로고
    • note
    • Ester 26 was obtained as a stereoisomeric mixture in a ratio of 92 : 8, although the stereochemistry has not been determined.
  • 27
    • 0342428008 scopus 로고    scopus 로고
    • note
    • Protodesilylation of 26 with KF in MeOH proceeded smoothly to give ester 18.
  • 28
    • 0342428007 scopus 로고    scopus 로고
    • note
    • The protodesilylation was complete mainly during the purification of the products by column chromatography on silica gel. In some cases the silyl group was partly replaced with proton in the aqueous work-up.
  • 32
    • 0002106278 scopus 로고
    • Liotta, D. Ed.; Wiley-Interscience, New York
    • (d) Guziec, F. S. Jr. in Organoselenium Chemistry; Liotta, D. Ed.; Wiley-Interscience, New York, 1987; p 277.
    • (1987) Organoselenium Chemistry , pp. 277
    • Guziec F.S., Jr.1
  • 35
    • 0001363663 scopus 로고
    • Katritzky, A. R., Meth-Cohn, O., Rees, C. W., Eds.; Pergamon: Oxford
    • (g) Dell, C. P. in Comprehenseive Organic Functional Group Transformations; Katritzky, A. R., Meth-Cohn, O., Rees, C. W., Eds.; Pergamon: Oxford, 1995; Vol. 5, p. 565.
    • (1995) Comprehenseive Organic Functional Group Transformations , vol.5 , pp. 565
    • Dell, C.P.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.