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Volumn 64, Issue 15, 1999, Pages 5396-5400

Origin of π-facial stereoselectivity in nucleophilic additions. Application of the exterior frontier orbital extension model to imines and iminium ions

Author keywords

[No Author keywords available]

Indexed keywords

CYCLOHEXANONE; IMINE;

EID: 0033597872     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo990018w     Document Type: Article
Times cited : (16)

References (25)
  • 23
    • 85069274846 scopus 로고    scopus 로고
    • note
    • Experimental procedures of these reactions followed those described in ref 12e. The stereochemical assignments of the products derived from the glycine imine or the piperazine imminium of tropone were made as follows. The stereochemistries of the products derived from the piperazine imminium were assigned by the NOESY method and the exo/endo ratio was determined by integration of the N-methyl protons (δ = 2.28 for the exo isomer and 2.20 for the endo isomer) as well as the bridge head protons (δ = 3.19 for the exo isomer and 3.08 for the endo isomer). The stereochemical assignment of the amine from the glycine inline, obtained as a single isomer, was made by conversion into the corresponding endo-piperazine derivative.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.