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Volumn 41, Issue 23, 2002, Pages 4526-4529

Highly enantioselective cycloisomerization of enynes catalyzed by rhodium for the preparation of functionalized lactams

Author keywords

Enantioselectivity; Heterocycles; Homogeneous catalysis; Rhodium; Synthetic methods

Indexed keywords

CATALYSIS; RHODIUM; SUBSTRATES;

EID: 0037011395     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/1521-3773(20021202)41:23<4526::AID-ANIE4526>3.0.CO;2-K     Document Type: Article
Times cited : (132)

References (48)
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    • note
    • Some other preliminary results for preparing lactones, and tetrahydrofurans will be published.
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    • a) From the NMR spectra, there is clear evidence that all of these protected enyne amides are translcis-mixtures while the unprotected enyne amides are single isomers:
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    • c) a terminal alkynyl-ene substrate was also examined in this reaction; high reactivity (100% conversion within 5 min) but poor enantioselectivity (6.5% ee) was observed.
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    • note
    • Bn-substituted substrates failed to yield the desired 1,4-diene products, while the starting materials were completely consumed.
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    • note
    • Using freshly prepared 3a and freshly distilled solvent was important to achieve 99% ee.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.