671819-37-7

Basic information

• Product Name: 7H-Benzo[c]fluoren-7-ol, 7-[1,1'-biphenyl]-2-yl-5-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-3-methoxy-
• CAS NO: 671819-37-7
• Molecular Formula: C36H36O3Si
• Molecular Weight: 544.766
• Mol File: 671819-37-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 7H-Benzo[c]fluoren-7-ol, 7-[1,1'-biphenyl]-2-yl-5-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-3-methoxy-(CAS DataBase Reference)
• NIST Chemistry Reference: 7H-Benzo[c]fluoren-7-ol, 7-[1,1'-biphenyl]-2-yl-5-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-3-methoxy-(671819-37-7)
• EPA Substance Registry System: 7H-Benzo[c]fluoren-7-ol, 7-[1,1'-biphenyl]-2-yl-5-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-3-methoxy-(671819-37-7)

Safety Data

• Hazardous Substances Data: 671819-37-7(Hazardous Substances Data)

Upstream product

• 671819-34-4 3-methoxy-5-t-butyldimethylsilyloxybenzo[c]fluorene-7-one 
• 2113-51-1 2-iodobiphenyl 

Relevant articles and documents

PROCESS FOR PREPARATION OF SPIROFLUORENOLS

A spirofluorenol such as 3',9'-dimethoxy-5'-hydroxyspiro[(1H-cyclopent[d,e,f]phenanthrene)-1,7'-benzo[c]fluorene] is produced by protecting a hydroxyl group bonded to a particular fluorenone compound such as 3,9-dimethoxy-5-hydroxybenzo[c]fluorene-7-one with "a substituted silyl group in which the sum of carbon atoms of substituents bonded to a silicon atom is 5 to 12", such as a t-butyldimethylsilyl group, then, reacting the fluorenone compound with a particular organometal compound such as 1-lithiophenanthrene so as to be transformed into a spiro form and, then, removing the protection therefrom. This method makes it possible to efficiently produce the spirofluorenol which is useful as a starting material for producing photochromic compounds.