Chandrasekharam, Malapaka ; Asokan, Chitoorthekkathil V. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1990) Oxoketene dithioacetals as versatile synthons for alternative 1,3 to 1,11 carbonyl transpositions: a new polyene synthesis Tetrahedron Letters, 31 (12). pp. 1763-1766. ISSN 0040-4039
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00404...
Related URL: http://dx.doi.org/10.1016/S0040-4039(00)88875-9
Abstract
A model strategy for 1,7 to 1,I1 carbonyI transpositions involving 1,2 addition of sodium borohydride or Grignard reagents to polyenyl oxoketene dithioacetals 8 obtained by condensation of bis(methylthio)polyenals 1-3 with active methylene ketones, followed by borontrifluoride etherate catalyzed methanolysis of the resulting polyenyl carbinol acetals 9 to give 1,n transposed polyene esters 10 has been described.
| Item Type: | Article |
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| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 24079 |
| Deposited On: | 29 Nov 2010 10:29 |
| Last Modified: | 22 Feb 2011 04:59 |
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