102898-11-3

Basic information

• Product Name: (+/-)-5-ethoxy-3t-(4-ethoxy-3-methoxy-phenyl)-1r-ethyl-6-methoxy-2c-methyl-indan
• Synonyms: (+/-)-5-ethoxy-3t-(4-ethoxy-3-methoxy-phenyl)-1r-ethyl-6-methoxy-2c-methyl-indan
• CAS NO: 102898-11-3
• Molecular Weight: 384.516
• Mol File: 102898-11-3.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: (+/-)-5-ethoxy-3t-(4-ethoxy-3-methoxy-phenyl)-1r-ethyl-6-methoxy-2c-methyl-indan(CAS DataBase Reference)
• NIST Chemistry Reference: (+/-)-5-ethoxy-3t-(4-ethoxy-3-methoxy-phenyl)-1r-ethyl-6-methoxy-2c-methyl-indan(102898-11-3)
• EPA Substance Registry System: (+/-)-5-ethoxy-3t-(4-ethoxy-3-methoxy-phenyl)-1r-ethyl-6-methoxy-2c-methyl-indan(102898-11-3)

Safety Data

• Hazardous Substances Data: 102898-11-3(Hazardous Substances Data)

Upstream product

• 7784-67-0 ethyl isoeugenol 
• 522-09-8 1β-ethyl-5-hydroxy-6-methoxy-3α-(4'-hydroxy-3'-methoxyphenyl)-2β-methylindane 
• 75-03-6 ethyl iodide 
• 64-17-5 ethanol 
• 2067-94-9 1-ethoxy-4-(1,2-dibromo-propyl)-2-methoxy-benzene 
• 64-19-7 acetic acid 
• 64-67-5 diethyl sulfate 
• 97-54-1 2-methoxy-4-propenylphenol 
• 137138-52-4 ethyl isoeugenol 
• 128628-13-7 Semisquaric chloride 
• 855612-68-9 5-ethoxy-3-(4-ethoxy-3-methoxy-phenyl)-6-methoxy-2-methyl-inden-1-one 
• 925-90-6 ethylmagnesium bromide 
• 522-09-8 r-1-ethyl-5-hydroxy-c-3-(4-hydroxy-5-methoxyphenyl)-6-methoxy-t-2-methylindane 
• 74-96-4 ethyl bromide 

Relevant articles and documents

Oxocarbons and related compounds. 27. Synthesis of dihydrocyclobuta[a]naphthalene-1,2-diones and cyclobuta[a]naphthalene-1,2-diones via annulation of alkoxy-(1-alkenyl)benzenes with 3-chloro-3-cyclobutene-1,2-dione. Scope and limitations

The reaction of alkoxy-(1-alkenyl)benzenes with semisquaric chloride (3) has been investigated systematically. 1,2-Dialkoxy- and 1-alkoxy′-2-alkoxy″-4-(1-alkenyl)benzenes (6a-j) and (11a-i) react with 3 to give the 3,4-dihydrocyclobuta[a]naphthalene-1,2-diones(8a-j) and (12a-i). Treatment of the dihydrocyclobuta[a]naphthalene-1,2-diones with 1.2 equiv. bromine effects dehydrogenation and affords cyclobuta[a]naphthalene-1,2-diones(9a-e) and (13b-f). Any efforts to extend this annulation reaction to dimethoxy-(1-alkenyl)benzenes with the methoxy groups in other than the 1,2-positions, e. g. 14a, b, 16a, b have been unsuccessful. The reaction of 1,2,3-trimethoxy-4-(1-propenyl) [and 4-(1-butenyl)]-benzenes (18a) and (18b) with semisquaric chloride (3) leads to the elimination of HCl and CH3OH and gives 5,6-dimethoxy-3-methyl [and 3-ethyl]-cyclobuta[a]naphthalene-1,2-diones (20a) and (20b). The reaction pathway of this novel annulation reaction is discussed.