Reference of 40191-32-0, Chemistry can be defined as the study of matter and the changes it undergoes. You’ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology.40191-32-0, Name is Tetrahydro-2H-pyran-4-carbonyl chloride, molecular formula is C6H9ClO2. In a patent, introducing its new discovery.
2,4-Disubstituted-5-methyl oxazoles were prepared from a 2-step, 1-pot procedure using acid chlorides and propargyl amines. These conditions lead to the formation of propargyl amides in situ followed by AuCl3 catalyzed cyclization. We were interested in this novel formation of tri-substituted oxazoles and exploring the scope of the reaction using these mild conditions. A variety of aryl and aliphatic amides containing sensitive functional groups were tolerated giving good yields.
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Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics