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2,3,5-trimethyl-1-phenyl-2,3-dihydro-1H-pyrazole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

27808-23-7

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27808-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 27808-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,8,0 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 27808-23:
(7*2)+(6*7)+(5*8)+(4*0)+(3*8)+(2*2)+(1*3)=127
127 % 10 = 7
So 27808-23-7 is a valid CAS Registry Number.

27808-23-7Upstream product

27808-23-7Downstream Products

27808-23-7Relevant academic research and scientific papers

Reactions of pyrazolium salts with silyllithium reagents. Regioselective synthesis of 5-silylated 3-pyrazolines

Cuadrado, Purificacion,Gonzalez-Nogal, Ana M.

, p. 1449 - 1452 (1998)

1,3,5-trisubstituted-2-methylpyrazolium iodides react with dimethylphenylsilyl- and tert-butyldiphenylsilyllithium leading, in general, to one of the corresponding 5-silyl-3-pyrazolines. The silyl group is easily substituted by electrophiles to give 5-functionalized 3-pyrazolines. Moreover, 5-silyl-3-pyrazolines undergo thermic ring opening with silicon-rearrangement affording α-silylated β-diimines.

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