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2-(2-Butenyl)-2-<(cyan)(phenyl)methyl>malonsaeure-diethylester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

99940-05-3

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99940-05-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99940-05-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,9,4 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 99940-05:
(7*9)+(6*9)+(5*9)+(4*4)+(3*0)+(2*0)+(1*5)=183
183 % 10 = 3
So 99940-05-3 is a valid CAS Registry Number.

99940-05-3Downstream Products

99940-05-3Relevant academic research and scientific papers

Applications of Phase-Transfer Catalysis, 31. - Tandem-Nucleophile-Electrophile Additions to Alkenes under Phase-Transfer Catalysis

Dehmlow, Eckehard V.,Kunesch, Ernst

, p. 1904 - 1909 (2007/10/02)

One-pot Michael additions/alkylations of diethyl benzylidenemalonate and ethyl (1-methylpropylidene)cyanoacetate (3) with alkali metal cyanide/phase-transfer (PT) catalyst and alkyl halides in halohydrocarbon solvents yield compounds 2a-f and 4a-d, respectively.It is noteworthy that no conversions occur in the total absence of traces of water.Cinnamates and methacrylates can be cyclo-dimerized by the action of solid cyanide/PT catalyst to give compounds 6 or 8, respectively.

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