메뉴 건너뛰기




Volumn , Issue 6, 2001, Pages 937-942

Enzymatic reduction of hydrophobic β,δ-diketo esters

Author keywords

Asymmetric catalysis; Enzymatic reduction; Lactones; Natural products; Stereoselective synthesis

Indexed keywords

ALCOHOLS; ENZYMES; HYDROPHOBICITY; REDUCTION;

EID: 0035026590     PISSN: 00397881     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2001-13393     Document Type: Article
Times cited : (30)

References (48)
  • 5
    • 1542783787 scopus 로고
    • (d) Chem. Abstr. 1989, 111, 114745n.
    • (1989) Chem. Abstr. , vol.111
  • 12
    • 0343420770 scopus 로고    scopus 로고
    • Ph.D. Thesis University of Düsseldorf: Düsseldorf
    • Riebel, B. Ph.D. Thesis University of Düsseldorf: Düsseldorf, 1996.
    • (1996)
    • Riebel, B.1
  • 15
    • 0031049952 scopus 로고    scopus 로고
    • and references cited therein
    • (b) Stecher, H.; Faber, K. Synthesis 1997, 1; and references cited therein.
    • (1997) Synthesis , pp. 1
    • Stecher, H.1    Faber, K.2
  • 19
    • 0032808807 scopus 로고    scopus 로고
    • α-substituted β-keto aldehyde
    • (d) Hayakawa, R.; Shimizu, M. Synlett 1999, 1298; (α-substituted β-keto aldehyde).
    • (1999) Synlett , pp. 1298
    • Hayakawa, R.1    Shimizu, M.2
  • 27
    • 0342550934 scopus 로고    scopus 로고
    • In a hexane-buffer biphasic system the reduction of compound 2 with recLBADH proceeded to only 20% conversion after five days (NADPH-recycling with 2-propanol)
    • In a hexane-buffer biphasic system the reduction of compound 2 with recLBADH proceeded to only 20% conversion after five days (NADPH-recycling with 2-propanol).
  • 37
    • 85086351641 scopus 로고    scopus 로고
    • note
    • -1 and the washed silica gel was dried at 105 °C for 24 h.
  • 38
    • 85086351881 scopus 로고    scopus 로고
    • note
    • -1) were added trifluoroacetic acid anhydride (7 μL) and pyridine (5 μL). The vial was capped and incubated at 40 °C for 10 min.
  • 39
    • 0001019699 scopus 로고
    • Preparation of bisenolates according to: (a) Weiler, L. J. Am. Chem. Soc. 1970, 92, 6702.
    • (1970) J. Am. Chem. Soc. , vol.92 , pp. 6702
    • Weiler, L.1
  • 40
    • 0000646470 scopus 로고
    • Weinreb amides were therefore applied as acylating reagents
    • (b) We found that an ester-based acylation procedure described by the same author resulted in low yields: Huckin, S. N.; Weiler, L. Can. J. Chem. 1974, 52, 1343; Weinreb amides were therefore applied as acylating reagents.
    • (1974) Can. J. Chem. , vol.52 , pp. 1343
    • Huckin, S.N.1    Weiler, L.2
  • 42
    • 85086352808 scopus 로고    scopus 로고
    • note
    • 6, one of the two enol forms is suppressed to approx. 5%.
  • 43
    • 85086351545 scopus 로고    scopus 로고
    • note
    • c-5(anti)(average value; maximum deviation ±8%). Signals of the enol forms were ignored since it can be assumed that both diastereomers undergo enolization to a similar extent.
  • 44
    • 0343856557 scopus 로고    scopus 로고
    • Data taken from the diastereomeric mixture, reference 28
    • Data taken from the diastereomeric mixture, reference 28.
  • 47
    • 0000548610 scopus 로고
    • Prepared from compound rac-9 as described in the general procedure I, Compound rac-9, in turn, was prepared from tert-butyl acetoacetate and propionaldehyde according to: Huckin, S. N.; Weiler, L. Can. J. Chem. 1974, 52, 2157.
    • (1974) Can. J. Chem. , vol.52 , pp. 2157
    • Huckin, S.N.1    Weiler, L.2
  • 48
    • 85086351872 scopus 로고    scopus 로고
    • note
    • 12c as described for the (4A,5S)-stereoisomer.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.