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The role of base ion-pairing in bimolecular elimination: the effect on the syn-anti dichotomy

✍ Scribed by M. Svoboda; J. Hapala; J. Závada

Publisher
Elsevier Science
Year
1972
Tongue
French
Weight
236 KB
Volume
13
Category
Article
ISSN
0040-4039

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✦ Synopsis

266 t?o. 4 trans-and cis-olefin proportions. Therefore, we have now investigated the effect of dicyclohexyl-18-crown-6-ether (N)'*l* on the trans-and cis-olefin composition in reaction of the bromide I (X-Br) and the tosylate I (X=OTs) with potassium tert-butoxide in three very different sohrents (benzene, tert-butanol and dimethylformamide\ The results me summarised in TABLE 1.

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