Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
Carbon–Carbon Bond Formation in Glycolic Acid Generated Spontaneously from Dichloromethane in Hot Water
Chihiro WakaiSaiko MorookaNobuyuki MatubayasiMasaru Nakahara
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2004 Volume 33 Issue 3 Pages 302-303


Hydrothermal reaction of dichloromethane (CH2Cl2) at 1 mol/dm3 leads to the formation of glycolic acid without metal catalysts at temperatures of 200–250 °C. The reaction consists of three steps. First CH2Cl2 is converted into methanediol through hydrolysis. The disproportionation of methanediol then produces methanol and formic acid. Finally, glycolic acid is formed from methanediol and formic acid catalyzed by the acid (HCl) generated by the dechlorination of CH2Cl2. The yield of glycolic acid exceeds 50% at 225 and 250 °C.

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© 2004 The Chemical Society of Japan
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