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methyl 5-oxo-5-phenyl-2-(trimethylsilyl)pentanoate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

127840-67-9

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127840-67-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127840-67-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,8,4 and 0 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 127840-67:
(8*1)+(7*2)+(6*7)+(5*8)+(4*4)+(3*0)+(2*6)+(1*7)=139
139 % 10 = 9
So 127840-67-9 is a valid CAS Registry Number.

127840-67-9Downstream Products

127840-67-9Relevant academic research and scientific papers

A Michael addition and alkylation sequence using m methyl 2-(trimethylsily)-propenoate. Stereoselective synthesis of α-silyl esters

Tanaka,Kanemasa,Ninomiya,Tsuge

, p. 476 - 483 (1990)

Michael addition of organomagnesiums or -lithiums with methyl 2-(trimethylsilyl)propenoate leads to either 1:1 or 1:2 adduct anions, depending upon the reaction condition and the reactivity of donor molecules. The adduct anions, both 1:1 and 1:2 types, are quenched with alkyl halides or water in a highly stereoselective manner to produce α-silylated esters. A rigid intramolecular chelation working in the adduct anions is partly responsible for the high selectivity.

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