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Vinylic cations from solvolysis. 39. Solvolysis of 9-[.alpha.-bromo- and .alpha.-(tosyloxy)-p-methoxybenzylidene]xanthenes

โœ Scribed by Rappoport, Zvi; Kaspi, Joseph; Tsidoni, Dov


Book ID
126191942
Publisher
American Chemical Society
Year
1984
Tongue
English
Weight
683 KB
Volume
49
Category
Article
ISSN
0022-3263

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Vinylic cations from solvolysis. VIII. S
โœ Zvi Rappoport; Micha Atidia ๐Ÿ“‚ Article ๐Ÿ“… 1970 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 232 KB

For the SE1 solvolysis of o(-bromo-p-methoxystyrene 1 2 and of Crisnisylvinyl bromide 2 3 k2/kl = 1.7 in 80,: EtCH. In buffered AcOH k2/kl = 4.2 andz shows an ---extensive bromide ion return, while 1 shows no return. 4 The later difference is attributed to the presenoe of the bulky aryl groups in th