Compound Q&A
How is 5,9-Dihydroxy-8-methoxy-2,2-dimethyl-7-(3-methyl-2-buten-1-yl)-3,4-dihydro-2H,6H-pyrano[3,2-b]xanthen-6-one (CAS: 19275-46-8) typically synthesized?
Answer
![5,9-Dihydroxy-8-methoxy-2,2-dimethyl-7-(3-methyl-2-buten-1-yl)-3,4-dihydro-2H,6H-pyrano[3,2-b]xanthen-6-one](https://static.chemtradehub.com/structs/192/19275-46-8-0366.webp "5,9-Dihydroxy-8-methoxy-2,2-dimethyl-7-(3-methyl-2-buten-1-yl)-3,4-dihydro-2H,6H-pyrano[3,2-b]xanthen-6-one")
5,9-Dihydroxy-8-methoxy-2,2-dimethyl-7-(3-methyl-2-buten-1-yl)-3,4-dihydro-2H,6H-pyrano[3,2-b]xanthen-6-one (CAS: 19275-46-8) can be synthesized via a multi-step process involving the condensation of a suitable methoxycinnamic acid derivative with a 2-methylbutenone under basic conditions. The reaction typically proceeds with a yield of 70-80%, and the product is purified by column chromatography using a silica gel column.
About
CAS No
19275-46-8
English Name
5,9-Dihydroxy-8-methoxy-2,2-dimethyl-7-(3-methyl-2-buten-1-yl)-3,4-dihydro-2H,6H-pyrano[3,2-b]xanthen-6-one
Molecular Formula
C24H26O6
Molecular Weight
410.47 g/mol
SMILES
CC(=CCC1=C(C(=CC2=C1C(=O)C3=C(C4=C(C=C3O2)OC(CC4)(C)C)O)O)OC)C
InChIKey
KJCDBAVVDILRMP-UHFFFAOYSA-N
Last Updated: 2025-10-01 13:51
![5,9-Dihydroxy-8-methoxy-2,2-dimethyl-7-(3-methyl-2-buten-1-yl)-3,4-dihydro-2H,6H-pyrano[3,2-b]xanthen-6-one — HePeng （ ShangHai ） Biotechnology Co Ltd](https://static.chemtradehub.com/suppliers/67ceccf22b2de6e8e95a5e0f/67ceccf22b2de6e8e95a5e0f-logo.webp){kind=logo}
![5,9-Dihydroxy-8-methoxy-2,2-dimethyl-7-(3-methyl-2-buten-1-yl)-3,4-dihydro-2H,6H-pyrano[3,2-b]xanthen-6-one — Chengdu Sodium Lithium Biotechnology Co., Ltd.](https://static.chemtradehub.com/suppliers/67ce7d7d2b2de6e8e95a46e1/67ce7d7d2b2de6e8e95a46e1-logo.webp){kind=logo}
![5,9-Dihydroxy-8-methoxy-2,2-dimethyl-7-(3-methyl-2-buten-1-yl)-3,4-dihydro-2H,6H-pyrano[3,2-b]xanthen-6-one — Jin Jinle (Hunan) Chemical Co., Ltd.](https://static.chemtradehub.com/suppliers/67ce76192b2de6e8e95a464e/67ce76192b2de6e8e95a464e-logo.webp){kind=logo}