Journal
ROYAL SOCIETY OPEN SCIENCE
Volume 5, Issue 2, Pages -Publisher
ROYAL SOC
DOI: 10.1098/rsos.171988
Keywords
triphenylphosphine oxide; coupling reagent; oxalyl chloride; esterification
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Funding
- School of Chemical and Environment Engineering, Shanghai Institute of Technology
- Shanghai Alliance Program [LM 201666]
- Shanghai Students' Science and Technology Innovation Activities Key Projects [SH 2016001]
- Capacity-building Projects in Shanghai Local University [15120503700]
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Triphenylphosphine oxide (TPPO) and oxalyl chloride ((COCl)(2)) are used as novel and high-efficiency coupling reagents for the esterification of alcohols with carboxylic acids via the TPPO/(COCl)(2) system at room temperature for 1 h. The reaction represents the first TPPO-promoted esterification under mild and neutral conditions with excellent yields. Furthermore, we proposed a plausible mechanism with the help of P-31 NMR spectroscopy.
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