With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.29943-42-8,Dihydro-2H-pyran-4(3H)-one,as a common compound, the synthetic route is as follows.
(u) 2-(m,p-dimethoxyphenyl)-ethyl, m.p. 188-191; The amine starting material for compound (e), 2-(tetrahydropyran-4-yl)-ethylamine, can be prepared from tetrahydropyran-4-one e.g. by Wittig condensation with diethyl cyanomethyl phosphonate followed by hydrogenation and reduction with lithium aluminum hydride., 29943-42-8
As the paragraph descriping shows that 29943-42-8 is playing an increasingly important role.
Reference£º
Patent; Ciba-Geigy Corporation; US4977144; (1990); A;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics