Studies on acetylenic compounds. XXV. Ring closure. (5). New synthetic method of heterocyclic compounds from alpha-amino- and alpha-N-substituted amino- acetylenic compounds.
The present invention provides a new method of synthetic 4- methyl-5-(2-hydroxyethyl) thiazole derivative, the method avoids the use of expensive chlorone and has advantages of high yield, low energy consumption, low environmental pollution and easy industrialization.
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Paragraph 0029-0031
(2018/01/11)
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