Reference of 50675-18-8, 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.50675-18-8, Name is Tetrahydropyran-4-carbaldehyde, molecular formula is C6H10O2. In a patent, introducing its new discovery.
Preparation of 4-formyltetrahydropyrans
4-Formyltetrahydropyrans of the general formula I STR1 where R1 is hydrogen, C1 -C12 -alkyl, C2 -C12 -alkenyl, C1 -C6 -alkoxy-substituted C1 -C12 -alkyl, C4 -C12 -cycloalkyl, unsubstituted or substituted aryl, hetaryl or aralkyl, or an unsubstituted or substituted, saturated or unsaturated 5-membered or 6-membered ring which may be interrupted by N, O or S, are prepared by a process in which a pyran derivative of the general formula II STR2 where R1 is as defined above, R2 and R3 are each OH or together are an oxygen atom and thus form an oxirane ring, and R4 is hydrogen where R2 and R3 are each OH, and is hydrogen or tert-butoxycarbonyl where R2 and R3 together are an oxygen atom, is treated at elevated temperatures with a catalyst selected from the group consisting of zeolites, phosphates, boric acid on a carrier and silica or mixtures of these. Novel 4-formyltetrahydropyrans are also proposed.
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Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics