Preparation of substituted 4-(3-methyl-3
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I. Yu. Kibina; Sh. M. Musantaeva; A. V. Shchelkunov
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Article
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1987
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Springer US
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English
โ 138 KB
UDC 547.426'729.7.04 A method has been developed for the preparation of 4-(3-hydroxy-l-alkynyl)-substituted 2-ethoxy-l,3-dioxolanes (which are novel flotation reagents for coal) based on the reaction between acetylene 1,2,5-triols and orthoformic ester in the presence of catalytic quantities of benz