Seka, R.’s team published research in Monatshefte fuer Chemie in 69 | CAS: 69097-99-0

Monatshefte fuer Chemie published new progress about 69097-99-0. 69097-99-0 belongs to tetrahydropyran, auxiliary class Other Aliphatic Heterocyclic,Benzene,Phenol,Ether,Inhibitor, name is 5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chroman-4-one, and the molecular formula is C5H6N2O2, COA of Formula: C16H14O6.

Seka, R. published the artcileNew synthesis of chrysin and other hydroxyflavones, COA of Formula: C16H14O6, the publication is Monatshefte fuer Chemie (1936), 284-91, database is CAplus.

The complex prepared from 2.4 g. 1,3,5-C6H3(OH)3 and 7.5 g. AlCl3 in 40 cc. PhNO2 and 3.12 g. PhCCCOCl, allowed to stand 14 days at room temperature, gives chrysin (5,7-dihydroflavone), purified by distillation of the Al compound with HCl, steam distillation of the PhNO2, sublimation of the resinous residue and extraction with boiling C6H6. In the same manner m-C6H4(OH)2 yields 7-hydroxyflavone and 1,2,3-C6H3(OH)3 gives 7,8-dihydroxyflavone. Natural and synthetic hesperetin (4′-methoxy-3′,5,7-trihydroxyflavanone), m. 233°, are purified by sublimation at 0.003-0.004 mg. Hg at a temperature not exceeding 205°; homoeriodictyol. similarly purified, m. 324° (cf. Shinoda and Kawagoye, C. A. 23, 2957; S. and Sato, C. A. 23, 4210).

Monatshefte fuer Chemie published new progress about 69097-99-0. 69097-99-0 belongs to tetrahydropyran, auxiliary class Other Aliphatic Heterocyclic,Benzene,Phenol,Ether,Inhibitor, name is 5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chroman-4-one, and the molecular formula is C5H6N2O2, COA of Formula: C16H14O6.

Referemce:
https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics