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ChemInform Abstract: A General Approach to 3-n-Butyl-5-alkylindolizidines: Total Synthesis of (-)-Indolizidine 195B.

✍ Scribed by Steven R. Angle; Musong Kim

Publisher: John Wiley and Sons
Year: 2008
Weight: 16 KB
Volume: 39
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200810214

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In Scheme 4 on page 3278, structures 5a and 5b are incorrectly given. The correct scheme is printed below. Scheme 4. (a) Pd/C, H 2 , MeOH; (b) pyridineϪSO 3 , DMSO, Et 3 N, CH 2 Cl 2 ; (c) 9, tBuOK, THF, Ϫ78°C; (d) PtO 2 , H 2 , EtOH; (e) Na/NH 3 , EtOH, Ϫ78°C to room temp.; (f) 10% Pd/C, H 2 , 1 

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A versatile method for the preparation of indolizidine developed. The utility of this approach was demonstrated by the synthesis of (+)-monomorine I. alkaloids from 1-benzyloxy-5-(p-toluenesulfonamido)-3alken-2-ols as stereodefined key intermediates has been butene-1,4-diol (Scheme 1). The stereoche