Stereospecificity of dienophile addition to cycloheptatrienes
โ Scribed by M.J. Goldstein; A.H. Gevirtz
- Publisher
- Elsevier Science
- Year
- 1965
- Tongue
- French
- Weight
- 226 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
โฆ Synopsis
Mono-7-substituted-1,3,5-cycloheptatrienes permit two opportunities for stereospecificity beyond those traditionally envisaged for Diels-Alder addition.(l) .
๐ SIMILAR VOLUMES
Despite the fact that tetrachlorocyclopentadiene is fairly easily prepared (l), no careful study of the structure of its reaction products with dienophiles appears to have been reported. McBee et al. (2) obtained adducts with benzo--quinone (l:l), cyclopentadiene (reported as a liquid), and maleic a
Primary and secondary phosphines add regio-and stereospecifically to phenylcyanoacetylene and 4-hydroxy-4-methylpent-2ynenitrile under mild conditions to form corresponding functionalized secondary and tertiary phosphines of Z-configuration in 70 -91% yield. According to ESR and UV data, the additio