71135-79-0

Basic information

• Product Name: 2',3'-Dihydro-7'-hydroxy-5'-methoxyspiro[2,5-cyclohexadiene-1,1'-[1H]inden]-4-one
• Synonyms: 2',3'-Dihydro-7'-hydroxy-5'-methoxyspiro[2,5-cyclohexadiene-1,1'-[1H]inden]-4-one;Cannabispiradienone
• CAS NO: 71135-79-0
• Molecular Formula: C15H14O3
• Molecular Weight: 242.27
• Mol File: 71135-79-0.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 453.2±45.0 °C(Predicted)
• Appearance: /
• Density: 1.29±0.1 g/cm3(Predicted)
• PKA: 9.23±0.20(Predicted)
• CAS DataBase Reference: 2',3'-Dihydro-7'-hydroxy-5'-methoxyspiro[2,5-cyclohexadiene-1,1'-[1H]inden]-4-one(CAS DataBase Reference)
• NIST Chemistry Reference: 2',3'-Dihydro-7'-hydroxy-5'-methoxyspiro[2,5-cyclohexadiene-1,1'-[1H]inden]-4-one(71135-79-0)
• EPA Substance Registry System: 2',3'-Dihydro-7'-hydroxy-5'-methoxyspiro[2,5-cyclohexadiene-1,1'-[1H]inden]-4-one(71135-79-0)

Safety Data

• Hazardous Substances Data: 71135-79-0(Hazardous Substances Data)

Upstream product

• 67884-29-1 3,4'-dihydroxy-5-methoxybibenzyl 
• 76842-74-5 O-methylcannabispiradienone 

Downstream Products

• 71135-80-3 cannithrene-1 
• 61262-81-5 cannabispirone 
• 69636-83-5 α-cannabispiranol 
• 64052-90-0 β-cannabispiranol 

Relevant articles and documents

1,2-Disubstituted Ethanes As Possible Precursors For The Synthesis of Cannabis Spirans

Three possible methods for converting suitable 1,2-disubstituted ethanes into Cannabis spirans have been investigated. 4',5-Dihydroxy-3-methoxybibenzyl underwent intramolecular o-p- and p-p-coupling with ferricyanide in a chloroform-aqueous potassium carbonate system, but yields were low: certain other oxidants did not succeed or gave only traces of product.A method for making 1-hydroxy-1-(3,5-dimethoxyphenylethyl)cyclohexan-4-one ethylene acetal or thioacetal via a Birch reaction is described: despite favourable precedent, acid-catalysed cyclisation led to octahydrophenanthrenones rather than spiro-ketones, whilst N,N-dimethylformamide dineopentyl acetal gave two olefins.Jacquesy's super-asid method for making spirocyclohexenones from a methoxylated bibenzyl was not applicable to the 3,4',5-trimethoxy-case, which would have given cannabispirenone methyl ether, presumably because of protonation of both aromatic systems.