- ETHERIFICATION PROCESS
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The present invention relates to a process for preparing ethers, particularly unsymmetrical ethers, and preferably ethers suitable for use as base stocks for lubricant compositions. In particular, the process involves the reaction of an α,β-unsaturated aldehyde with a trihydrocarbyl orthoester to form an α,β-unsaturated acetal and conversion of the α,β- unsaturated acetal to an ether through hydrogenation and hydrogenolysis.
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Page/Page column 24; 25
(2019/05/10)
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- A convenient procedure for the formylation of amines and alcohols using cyanomethyl formate
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A simple metyod for the direct formylation of amines using cyanomethyl formate is described. The formylation succeeds in moderate to high yields under mild and neutral conditions. Thus, formamides 2a-f, 2i-m are obtained at room temperature. A chemoselective N-formylation is achieved in the case of ethanolamine. The formylation of nitroanilines and the O-formylation of alcohols only succeeds in the presence of a catalytic amount of imidazole leading to 2g,h and 3a-e, respectively.
- Deutsch,Niclas
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p. 1561 - 1568
(2007/10/02)
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