메뉴 건너뛰기




Volumn 46, Issue 45, 2010, Pages 8624-8626

Rational electronic tuning of CBS catalyst for highly enantioselective borane reduction of trifluoroacetophenone

Author keywords

[No Author keywords available]

Indexed keywords

ACETOPHENONE; ALCOHOL; ALPHA,ALPHA,ALPHA TRIFLUOROACETOPHENONE; BORANE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 78149462710     PISSN: 13597345     EISSN: None     Source Type: Journal    
DOI: 10.1039/c0cc03706k     Document Type: Article
Times cited : (23)

References (27)
  • 20
    • 78149464118 scopus 로고    scopus 로고
    • All calculations were performed at the B3LYP/6-311G(2d,p)//B3LYP/6- 311G(2d,p) by using Gaussian 03 (see ESI
    • All calculations were performed at the B3LYP/6-311G(2d,p)//B3LYP/6- 311G(2d,p) by using Gaussian 03 (see ESI).
  • 21
    • 78149455263 scopus 로고    scopus 로고
    • In ref. 4b, for example, the asymmetric reduction of p-nitroacetophenone by using OAB bearing several B-Ar groups gave similar enantioselectivity at 110 °C in toluene
    • In ref. 4b, for example, the asymmetric reduction of p-nitroacetophenone by using OAB bearing several B-Ar groups gave similar enantioselectivity at 110 °C in toluene.
  • 25
    • 34548248667 scopus 로고    scopus 로고
    • One likely reason for the different results between our catalytic system and CBS with catecholborane is due to asymmetric reduction with another catecholborane in the presence of CBS-catecholborane adduct: Y.-Y. Yeung R.-J. Chein E. J. Corey J. Am. Chem. Soc. 2007 129 10346
    • (2007) J. Am. Chem. Soc. , vol.129 , pp. 10346
    • Yeung, Y.-Y.1    Chein, R.-J.2    Corey, E.J.3
  • 26
    • 78149419499 scopus 로고    scopus 로고
    • Definition of two layers was shown in ESI (Fig. S2). Harmonic vibrational frequencies were computed for all stationary points in order to characterize them as saddle points. The energies were corrected using the zero-point energy. IRC calculations were performed to confirm the formation of product
    • Definition of two layers was shown in ESI (Fig. S2). Harmonic vibrational frequencies were computed for all stationary points in order to characterize them as saddle points. The energies were corrected using the zero-point energy. IRC calculations were performed to confirm the formation of product
  • 27
    • 78149439823 scopus 로고    scopus 로고
    • 3 reduction, particularly, in 6c. See ref. 8b
    • 3 reduction, particularly, in 6c. See ref. 8b


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.