Patent ID: 11866393
Assignee: ZHEJIANG UNIVERSITY
Field: Organic fine chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A 7,7′-dihalo-3,3,3′,3′-tetramethyl-1,1′-spirobiindane, being a compound represented by formula I, or an enantiomer, a raceme or a diastereomer thereof:, wherein R1 is selected from the group consisting of hydrogen, C1-C10 alkyl or perfluoroalkyl, C3-C6 cycloalkyl, aryl or substituted aryl, and heteroaryl or substituted heteroaryl; R2 is selected from the group consisting of hydrogen, C1-C10 alkyl or perfluoroalkyl, and C3-C6 cycloalkyl; wherein the substituted aryl or the substituted heteroaryl has one or more substituents independently selected from the group consisting of halogen, C1-C4 alkyl or perfluoroalkyl, C3-C6 cycloalkyl, C1-C4 alkoxy or perfluoroalkoxy, methylenedioxy, aryl, aryloxy, and heteroaryl; the heteroaryl is C5-C14 heteroaryl; and X is halogen.