SCOPE OF THE CHROMIUM(II)-MEDIATED SYNTHESIS OF E-ALKENYLSTANNANES FROM ALDEHYDES AND BU(3)SNCHBR(2)
The synthesis of E-alkenylstannanes from aldehydes and a mixture of Bu3SnCHBr2, LiI and CrCl2 is described. A mechanism is proposed to account for the alkene geometry in chromium(II)-mediated alkene synthesis which involves stereoselective addition by a gem-dichromium reagent to an aldehyde followed...
| Główni autorzy: | , , |
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| Format: | Journal article |
| Język: | English |
| Wydane: |
1995
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| Streszczenie: | The synthesis of E-alkenylstannanes from aldehydes and a mixture of Bu3SnCHBr2, LiI and CrCl2 is described. A mechanism is proposed to account for the alkene geometry in chromium(II)-mediated alkene synthesis which involves stereoselective addition by a gem-dichromium reagent to an aldehyde followed by a stereospecific elimination step. © 1995. |
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