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Volumn 20, Issue 5, 2009, Pages 616-620

Enantioselective addition of thiophenylboronic acids to aldehydes using ZnEt2/Schiff-base catalytic system

Author keywords

[No Author keywords available]

Indexed keywords

ALDEHYDE; BENZENEBORONIC ACID; METHANOL; SCHIFF BASE; THIOPHENYLBORONIC ACID; UNCLASSIFIED DRUG;

EID: 65349193832     PISSN: 09574166     EISSN: 1362511X     Source Type: Journal    
DOI: 10.1016/j.tetasy.2009.02.059     Document Type: Article
Times cited : (15)

References (59)
  • 51
  • 56
    • 65349084715 scopus 로고    scopus 로고
    • Under the same conditions, we also uesd B5 in the addition of 2-thiophenylboronic acid to two aliphatic aldehydes: isobutyl-aldehyde and cyclohexanecarboxaldehyde. The enantioselectivities were determined by chiral HPLC on a Chiracel OD column and were found to be 40 and 61% ee, respectively.
    • Under the same conditions, we also uesd B5 in the addition of 2-thiophenylboronic acid to two aliphatic aldehydes: isobutyl-aldehyde and cyclohexanecarboxaldehyde. The enantioselectivities were determined by chiral HPLC on a Chiracel OD column and were found to be 40 and 61% ee, respectively.
  • 57
    • 65349158042 scopus 로고    scopus 로고
    • To evaluate the asymmetry-inducing ability of B5, the reaction of 2-chlorobenzaldehyde with phenyl-boronic acid was performed under the same conditions, and we obtained an ee value of 94% with a good yield of 91%.
    • To evaluate the asymmetry-inducing ability of B5, the reaction of 2-chlorobenzaldehyde with phenyl-boronic acid was performed under the same conditions, and we obtained an ee value of 94% with a good yield of 91%.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.