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3 results on '"Hemeon I"'

1. I2/TBHP-Promoted Approach to α-Keto Esters from Trifluoromethyl β-Diketones and Alcohols via C-C Bond Cleavage.

Author

Tongle Shao, Xiang Fang, Jun Zhou, Chen Jin, Xueyan Yang, and Fanhong Wu

Subjects
OXIDATIVE coupling, COUPLING reactions (Chemistry), TRIFLUOROMETHYL compounds
Abstract

A metal-free oxidative coupling reaction of trifluoromethyl β-diketones with alcohols for the synthesis of α-keto esters in good to excellent yields has been developed. Preliminary mechanistic studies suggest that an I2/TBHP promoted sequential iodination, C-C bond cleavage, C-O bond formation and oxidation pathway is involved in this reaction. [ABSTRACT FROM AUTHOR]

Published
2017
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2. Rhenium Complex as a Useful Catalyst for Acylative Cleavage of Ethers.

Author

Umeda, Rui, Kaiba, Kenta, Tanaka, Toshimasa, Takahashi, Yuuki, Nishimura, Takashi, and Nishiyama, Yutaka

Subjects
RHENIUM compounds, CATALYSTS, ETHERS, ESTERS, SCISSION (Chemistry), CHEMICAL bonds
Abstract

It was found that a rhenium complex such as ReBr(CO)5 acts as an efficient catalyst for the acylative cleavage of the carbon-oxygen bond of ethers with acyl chloride, giving the corresponding esters in moderate to good yields. [ABSTRACT FROM AUTHOR]

Published
2010
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