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Volumn , Issue 18, 2002, Pages 3133-3139

Solid-phase synthesis of piperidines by N-acyliminium ion chemistry

Author keywords

Benzotriazole; Cyclisation; N Acyliminium ion; Nitrogen heterocycles; Piperidines

Indexed keywords

BENZOTRIAZOLE DERIVATIVE; PIPERIDINE DERIVATIVE;

EID: 0036740219     PISSN: 1434193X     EISSN: None     Source Type: Journal    
DOI: 10.1002/1099-0690(200209)2002:18<3133::AID-EJOC3133>3.0.CO;2-H     Document Type: Article
Times cited : (24)

References (37)
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    • Details on the synthesis of amino acetals 9a-e are published in the preceding article: R. W. M. Aben, H. W. Scheeren, Eur. J. Org. Chem. 2002, 0000-0000. ((002200))
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    • 2 in the presence of pTSA (cat.) for 15 min to provide a mixture of 16 and 17. Allyltrimethylsilane was then added, and the mixture was stirred at room temperature for 20 h. This yielded a mixture consisting mainly of 16 and 17 and a small amount of product 14. Presumably, allyltrimethylsilane is not stable to protic acids, making this an ineffective procedure. This result corresponds well with the findings of Shono et al. who observed the same when trying to couple a silyl enol ether to an enamide precursor using a protic acid: T. Shono, Y. Matsumura, K. Tsubata, J. Am. Chem. Soc. 1981, 103, 1172.
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    • [14a], in which isopropenyl acetate could only be coupled in a low yield.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.