Stereocontrolled synthesis of linear 22R-homoallylic sterols via a triflic acid-catalyzed 2-oxonia cope rearrangement

Organic Letters

Volumn 4, Issue 14, 2002, Pages 2389-2391

  Loh, Teck Peng ^a   Hu, Qi Ying ^a   Ma, Li Ting ^a  

^a NATIONAL UNIVERSITY OF SINGAPORE   (Singapore)

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ARTICLE;

EID: 0013319954     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol026136e     Document Type: Article

References (22)

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18. 1a was prepared by adopting the literature method as described in ref. 8a. Compound 1b was prepared by the method as described in: Loh, T.-P.; Li, X.-R. Eur. J. Org. Chem. 1999, 8, 1893.
19. For a review, see: (a) Fürstner, A. Synthesis-Stuttgart 1989, 571. For some examples of indium-mediated Reformatsky reactions, see: (b) Araki, S.; Ito, H.; Butsugan, Y. Synth. Commun. 1988, 18, 453. (c) Johar, P. S.; Araki, S.; Butsugan, Y. J. Chem. Soc., Perkin Trans. 1 1992, 711.
20. For a review, see: (a) Fürstner, A. Synthesis-Stuttgart 1989, 571. For some examples of indium-mediated Reformatsky reactions, see: (b) Araki, S.; Ito, H.; Butsugan, Y. Synth. Commun. 1988, 18, 453. (c) Johar, P. S.; Araki, S.; Butsugan, Y. J. Chem. Soc., Perkin Trans. 1 1992, 711.
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22. 3; Z = 4; R1 = 0.0346, wR2 = 0.0747, GOF = 1.058 for 3954 observations with I > 2σ(I).