895918-19-1

Basic information

• Product Name: 4H-1-Benzopyran-4-one, 2-[4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]phenyl]-2,3-dihydro-5-hydroxy- 7-methoxy-
• CAS NO: 895918-19-1
• Molecular Formula: C22H28O5Si
• Molecular Weight: 400.547
• Mol File: 895918-19-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4H-1-Benzopyran-4-one, 2-[4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]phenyl]-2,3-dihydro-5-hydroxy- 7-methoxy-(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-1-Benzopyran-4-one, 2-[4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]phenyl]-2,3-dihydro-5-hydroxy- 7-methoxy-(895918-19-1)
• EPA Substance Registry System: 4H-1-Benzopyran-4-one, 2-[4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]phenyl]-2,3-dihydro-5-hydroxy- 7-methoxy-(895918-19-1)

Safety Data

• Hazardous Substances Data: 895918-19-1(Hazardous Substances Data)

Upstream product

• 480-41-1 5,7-Dihydroxy-2-(4-hydroxy-phenyl)-chroman-4-on 
• 487-70-7 2,4,6-trihydroxybenzaldehyde 
• 895918-08-8 carbonic acid 5-tert-butoxycarbonyloxy-2-(4-tert-butoxy-phenyl)-4-oxo-chroman-7-yl ester tert-butyl ester 
• 895918-07-7 carbonic acid 5-tert-butoxycarbonyloxy-2-(4-tert-butoxy-phenyl)-chroman-7-yl ester tert-butyl ester 
• 895918-06-6 tri-tert-butyl (2-formylbenzene-1,3,5-triyl)tricarbonate 
• 69739-34-0 t-butyldimethylsiyl triflate 
• 520-29-6 5,4'-dihydroxy-7-methoxyflavanone 

Downstream Products

• 895918-10-2 carbonic acid tert-butyl ester 2-[4-(tert-butyl-dimethyl-silanyloxy)-phenyl]-7-methoxy-4-oxo-chroman-5-yl ester 

Relevant articles and documents

(±)-Diinsininone: made nature's way

We report the synthesis of diinsininone (33), the aglycone of (±)-diinsinin (2). Thereby, we complete the first construction of a proanthocyanidin (PA) type-A compound incorporating a [3.3.1]-bicyclic ketal as its characteristic core. Our strategy utilizes a coupling between a benzopyrilium salt and a flavanone that proves applicable to other PA type-A compounds. During this undertaking, treatment of naringenin (9) with 2-iodoxybenzoic acid (IBX) followed by reductive work-up affords eriodictyol (10). This reactivity mirrors that of catechol hydroxylase (F3H) found in the flavonoid pathway. Other interesting transformations include the formation of flavonoids through an ortho-quinone methide (o-QM) cycloaddition-oxidation sequence and regioselective β-glycosidations of several unprotected flavanones suggesting a likely synthesis of 2 from the aglycone 33.