Perkin communications. Improved synthesis of secondary hydroperoxides from alcohols
摘要:
Secondary hydroperoxides have been prepared from secondary alcohols by conversion of the alcohol into its mesylate and subsequent reaction with anhydrous hydrazine followed by hydrogen peroxide and sodium peroxide.
<i>C</i>-Glycosylation Reactions of Sulfur-Substituted Glycosyl Donors: Evidence against the Role of Neighboring-Group Participation
作者:Matthew G. Beaver、Susan B. Billings、K. A. Woerpel
DOI:10.1021/ja0767783
日期:2008.2.1
substitution reactions of C-4 sulfur-substituted tetrahydropyran acetals revealed that neighboring-group participation does not control product formation. Spectroscopic evidence for the formation of an intermediate sulfonium ion is provided, as are data from nucleophilic substitution reactions demonstrating that products are formed from oxocarbenium ion intermediates. The selectivity was not sensitive
Stereochemistry of Nucleophilic Substitution Reactions Depending upon Substituent: Evidence for Electrostatic Stabilization of Pseudoaxial Conformers of Oxocarbenium Ions by Heteroatom Substituents
作者:Leticia Ayala、Claudia G. Lucero、Jan Antoinette C. Romero、Sarah A. Tabacco、K. A. Woerpel
DOI:10.1021/ja037935a
日期:2003.12.1
tetrahydropyran acetates reveal that the conformational preferences of six-membered-ring cations depend significantly upon the electronic nature of the substituent. Nucleophilic substitutions of C-3 and C-4 alkyl-substituted tetrahydropyran acetates proceeded via pseudoequatorially substituted oxocarbenium ions, as would be expected by consideration of stericeffects. Substitutions of C-3 and C-4 alkoxy-substituted
Perkin communications. Improved synthesis of secondary hydroperoxides from alcohols
作者:Dee Ann Casteel、Kyeong-Eun Jung
DOI:10.1039/p19910002597
日期:——
Secondary hydroperoxides have been prepared from secondary alcohols by conversion of the alcohol into its mesylate and subsequent reaction with anhydrous hydrazine followed by hydrogen peroxide and sodium peroxide.