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(1S,4R,7R)-7-Methyl-1,4,5,6,7-pentaphenyl-7-sila-bicyclo[2.2.1]hepta-2,5-diene-2,3-dicarboxylic acid dimethyl ester is a complex organic compound with a unique molecular structure. It is characterized by a bicyclo[2.2.1]hepta-2,5-diene core, which is a seven-membered ring with two carbon-carbon double bonds. The molecule features a silicon atom (silica) at the 7-position, which replaces one of the carbon atoms in the ring, making it a sila-analog of the parent compound. Additionally, it has five phenyl groups attached to the carbon atoms at positions 1, 4, 5, 6, and 7, and a methyl group at the 7-position. The carboxylic acid groups at the 2 and 3 positions are esterified with methanol, resulting in dimethyl esters. (1S,4R,7R)-7-Methyl-1,4,5,6,7-pentaphenyl-7-sila-bicyclo[2.2.1]hepta-2,5-diene-2,3-dicarboxylic acid dimethyl ester is a derivative of a bicyclo[2.2.1]hepta-2,5-diene, with the presence of a silicon atom and multiple phenyl groups, making it an interesting molecule for studying the effects of silicon substitution and aromatic substitution on the properties of such compounds.

77971-23-4

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77971-23-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77971-23-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,9,7 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77971-23:
(7*7)+(6*7)+(5*9)+(4*7)+(3*1)+(2*2)+(1*3)=174
174 % 10 = 4
So 77971-23-4 is a valid CAS Registry Number.

77971-23-4Downstream Products

77971-23-4Relevant academic research and scientific papers

7-SILANORBORNADIENES AND THEIR THERMAL CYCLOELIMINATION

Mayer, Bernd,Neumann, Wilhelm P.

, p. 4887 - 4890 (1980)

Thermolysis of 22 7-silanorbornadienes (18 of them are new) forming silylene R2Si and the corresponding benzene derivatives is shown to be a two step reaction enhanced by higher stability of the intermediate biradical.Evidence for the latter is given by trapping and ESR experiments.

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