Di-tert-butylvinylidenecarbene, tetra-tert-butylbutatriene, tetra-tert-butylhexapentaene, and tetrakis (di-tert-butylvinylidene) cyclobutane
HD Hartzler
Index: Hartzler,H.D. Journal of the American Chemical Society, 1971 , vol. 93, p. 4527 - 4531
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Citation Number: 70
Abstract
Abstract: The reaction of 3-ethynyl-2, 2, 4, 4-tetramethyl-3-pentyl acetate (5) with potassium tert-butoxide and olefins gave di-tert-butylvinylidenecyclopropanes. The relative rates of reaction of the intermediate di-tert-butylvinylidene-carbene with olefins were determined and compared with previously obtained rates of reaction of the dimethylvinylidenecarbene. Arguments are presented which suggest that the carbenes are uncomplexed in the ...
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