Substituent Effects in the Decomposition of<i>t</i>-Alkyl<i>t</i>-Butyl Peroxides
作者:Kazuo Matsuyama、Yoshiki Higuchi
DOI:10.1246/bcsj.64.259
日期:1991.1
The decomposition rates and products of various t-alkyl t-butylperoxides were examined in cumene at several temperatures. The decomposition of these peroxides took place homolytically, depending on the structure of the t-alkoxyl moieties (RC(CH3)2–O), and was retarded in the order: R=(CH3)3CCH2>(CH3)2CH>CH3CH2CH2>PhCH2>CH3CH2>ClCH2>CH3. The rate constants for the electron-donating alkyl substitutents
Preparation of di-t-alkyl peroxides and t-alkyl hydroperoxides from n-alkyl ethers
申请人:Crompton Corporation
公开号:US06225510B1
公开(公告)日:2001-05-01
A process for production of a t-alkyl peroxide compound includes the steps of:
a) reacting an n-alkyl t-alkyl ether with a reactant mixture comprising an acid catalyst and a compound of the formula
RO2H (I)
where R is H or t-alkyl, provided that if R is t-alkyl the t-alkyl peroxide compound product is a di-t-alkyl peroxide,
and
b) isolating a reaction product comprising said t-alkyl peroxide compound from the mixture resulting from step a).
The process can be used to prepare t-butyl hydroperoxide or di-t-butyl peroxide from methyl t-butyl ether. Sulfuric acid may be used as the acid catalyst.
作者:Xiaolong Su、Honggui Huang、Wei Hong、Jianchao Cui、Menglin Yu、Yi Li
DOI:10.1039/c7cc08362a
日期:——
An unprecedented in situ SO2-capture cascade triggered by alkylradicals has been documented herein. Mechanistic investigations suggest that, triggered by alkylradicals, SO2 was released in situ and subsequently fixed into polycyclic small molecules. A wide range of alkylsulfonyl substituted polycyclic compounds were easily prepared with high yields and good functional group tolerability.