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1-Oxaspiro[4.5]decan-2-one, 4-[4-(4-nitrophenyl)-2-thiazolyl]- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

140650-90-4

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140650-90-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140650-90-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,6,5 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 140650-90:
(8*1)+(7*4)+(6*0)+(5*6)+(4*5)+(3*0)+(2*9)+(1*0)=104
104 % 10 = 4
So 140650-90-4 is a valid CAS Registry Number.

140650-90-4Downstream Products

140650-90-4Relevant academic research and scientific papers

SYNTHESIS AND SOME PROPERTIES OF ETHYL 2-OXO-4-CYANO-1-OXASPIRODECANE-3-CARBOXYLATE

Kuroyan, R. A.,Pogosyan, S. A.,Grigoryan, N. P.

, p. 821 - 823 (2007/10/02)

It was established by NMR and mass spectrometry that 1-oxaspirooctane-2-carboxylic acid nitrile is converted, by the action of sodium malonate in toluene, to ethyl 2-oxo-4-cyano-1-oxaspirodecane-3-carboxylate, which, upon refluxing in DMSO, is de-ethoxycarbonylated to give 2-oxo-1-oxaspirodecane-4-carboxylic acid nitrile.The latter is converted to a thioamide, on the basis of which some thiazoles were synthesized.

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