109765-65-3

Basic information

• Product Name: 2H-Pyran, 2-(2,5-dimethoxyphenoxy)tetrahydro-
• CAS NO: 109765-65-3
• Molecular Formula: C13H18O4
• Molecular Weight: 238.284
• Mol File: 109765-65-3.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: 2H-Pyran, 2-(2,5-dimethoxyphenoxy)tetrahydro-(CAS DataBase Reference)
• NIST Chemistry Reference: 2H-Pyran, 2-(2,5-dimethoxyphenoxy)tetrahydro-(109765-65-3)
• EPA Substance Registry System: 2H-Pyran, 2-(2,5-dimethoxyphenoxy)tetrahydro-(109765-65-3)

Safety Data

• Hazardous Substances Data: 109765-65-3(Hazardous Substances Data)

Upstream product

• 694-54-2 tetrahydro-2H-2-pyranol 
• 18113-18-3 2,5-dimethoxyphenol 
• 93-02-7 2,5-dimethoxybenzaldehyde 
• 110-87-2 3,4-dihydro-2H-pyran 

Downstream Products

• 64466-51-9 3,6-Dimethoxy-2-hydroxybenzaldehyde 
• 358622-84-1 1-[2-(2-tetrahydropyranyloxy)-3,6-dimethoxyphenyl]-3-methyl-2-buten-1-ol 
• 173031-80-6 1-[3,6-Dimethoxy-2-(tetrahydro-pyran-2-yloxy)-phenyl]-3-methyl-but-2-en-1-one 
• 109765-61-9 3,6-dimethoxy-4,5-dichlorocatechol 
• 109765-63-1 3,6-dimethoxy-4,5-dichloro-1,2-benzoquinone 
• 109765-62-0 4-bromo-3,6-dimethoxycatechol 
• 109765-64-2 3,6-dimethoxy-4-bromo-1,2-benzoquinone 
• 108213-73-6 3,6-dimethoxy-1,2-benzoquinone 
• 109765-60-8 2,3-dihydroxy-1,4-dimethoxybenzene 
• 65162-35-8 4-bromo-3,6-dimethoxysalicylaldehyde 
• 92156-56-4 5,8-dimethoxy-2,2-dimethylchroman 
• 113949-29-4 2,2-dimethyl-5,8-dimethoxy-2H-1-benzopyrane 
• 15297-92-4 2,2-dimethyl-2H-benzo[g]chromene-5,10-dione 

Relevant articles and documents

Biomimetic synthesis of the apoptosis-inducing thiazinoquinone thiaplidiaquinone A

A concise total synthesis of the apoptosis-inducing, marine metabolite thiaplidiaquinone A is described. The key ring forming steps are both based on biosynthetic considerations and involve the construction of the central benzo[c]chromene quinone unit by an extremely facile oxa-6π-electrocyclic ring closure reaction of an ortho-quinone intermediate, derived by tautomerization of a bis-benzoquinone, readily accessed from two simple phenolic precursors. This is followed by the installation of the 1,4-thiazine-dioxide ring by reaction of the benzo[c]chromene quinone with hypotaurine.

Synthesis of 2,2-dimethyl-3, 4-epoxy-2h-naphtho[2,3-b]pyran-5, 10-dione

A short and convenient synthesis of benzopyranoquinone 6 and its application to the preparation of epoxynaphthopyanoquinone 1 is described.

Synthesis of (S)-4-hydroxy-α-lapachone and biotransformation of some 4-chromanones by Mortierella isabellina ATCC 42613

1-Methoxy-2-naphthol was converted by MOM ether formation, lithiation at C-3, reaction with 3,3-dimethylacryloyl chloride, cyclization, and oxidation using cerium ammonium nitrate to 4-keto-α-lapachone (2,2-dimethyl-4-keto-1-oxa-1,2,3,4-tetrahydroanthra-5