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Cyclopropane as a neighboring group in trifluoroethanolysis of 2-cyclopropylethyl tosylate

โœ Scribed by I.M. Takakis; Yorke E. Rhodes


Book ID
104245829
Publisher
Elsevier Science
Year
1978
Tongue
French
Weight
268 KB
Volume
19
Category
Article
ISSN
0040-4039

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โœฆ Synopsis


The propensity of cyclopropane to stabilize remote incipient carbocationic centers has been dmmstrated in the solvolyses of gecmetrically constrained substrates'. In contrast, cyclopropane-cation interaction (kAcc H 3 5) is weak cmpared to nucleophilic solvent assistance


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ChemInform Abstract: Directing Effect of
โœ J. COSSY; N. BLANCHARD; C. MEYER ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons โš– 33 KB ๐Ÿ‘ 2 views

Directing Effect of a Neighboring Aromatic Group in the Cyclopropanation of Allylic Alcohols. -Various racemic allylic alcohols are stereoselectively transformed to cyclopropanes with I-CH 2 -Cl in the presence of either zinc or samarium reagent. Alcohols bearing an aryl group at the stereocenter a