cheminform abstract: diastereoselective synthesis of 1-aza-spiro[5.5]undecane skeleton

2001 fused pyridine derivatives fused pyridine derivatives R 0450 36 - 149 Diastereoselective Synthesis of 1-Aza-spiro[5.5]undecane Skeleton. — The pipecolic acid derived sulfone (IV) is reported as intermediate for the synthesis of various bicyclic enamines (VI). Cyclization of the furan derivative (VIc) via in situ generated N-acyliminium ions gives the spiro compound (VII) which possesses the backbone of histrinicotoxin alkaloids. — (DAVID, MARC; DHIMANE, HAMID; VANUCCI-BACQUE, CORINNE; LHOMMET, GERARD; Heterocycles 55 (2001) 5, 941-949; Lab. Chim. Heterocycl., CNRS, Univ. P. et M. Curie, F-75252 Paris, Fr.; EN) 1

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Page 1: ChemInform Abstract: Diastereoselective Synthesis of 1-Aza-spiro[5.5]undecane Skeleton

2001 fused pyridine derivatives

fused pyridine derivativesR 0450

36 - 149Diastereoselective Synthesis of 1-Aza-spiro[5.5]undecane Skeleton.— The pipecolic acid derived sulfone (IV) is reported as intermediate for thesynthesis of various bicyclic enamines (VI). Cyclization of the furan derivative(VIc) via in situ generated N-acyliminium ions gives the spiro compound(VII) which possesses the backbone of histrinicotoxin alkaloids. — (DAVID,MARC; DHIMANE, HAMID; VANUCCI-BACQUE, CORINNE; LHOMMET,GERARD; Heterocycles 55 (2001) 5, 941-949; Lab. Chim. Heterocycl., CNRS,Univ. P. et M. Curie, F-75252 Paris, Fr.; EN)

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