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Volumn 21, Issue 2, 2002, Pages 283-292

"Widening the roof": Synthesis and characterization of new chiral C1-symmetric octahydrofluorenyl organolanthanide catalysts and their implementation in the stereoselective cyclizations of aminoalkenes and phosphinoalkenes

Author keywords

[No Author keywords available]

Indexed keywords

CYCLIZATION;

EID: 0000988919     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om0104013     Document Type: Article
Times cited : (164)

References (96)
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    • note
    • The dichloro complexes and amido precatalysts were characterized by multinuclear NMR and elemental analysis, as detailed in the Experimental Section.
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    • note
    • 2 has not yet been accomplished with acceptable diastereoselectivity.
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    • 2Ln-complexes susceptible to hydrogenolysis, see ref 2d, pp 932-940
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    • The barrier to inversion at trigonal phosphorus is typically ∼35 kcal/mol: (a) Quin, L. D.; Hughes, A. N. The Chemistry of Organophosphorus Compounds; Hartley, F. R., Ed.; Wiley: Chichester, U.K., 1990; Vol. 1, pp 295-394.
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    • note
    • Not surprisingly, heating a solution of phospholane 14 increases the rate of isomerization.
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    • note
    • Minimal (<5%) formation of the all-cis phospholane is observed, and this minor product is not considered in the calculation of the de's shown in Table 5.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.