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157592-40-0

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157592-40-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157592-40-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,5,9 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 157592-40:
(8*1)+(7*5)+(6*7)+(5*5)+(4*9)+(3*2)+(2*4)+(1*0)=160
160 % 10 = 0
So 157592-40-0 is a valid CAS Registry Number.

157592-40-0Downstream Products

157592-40-0Relevant articles and documents

Photocatalytic C(sp3)?H Activation towards α-methylenation of Ketones using MeOH as 1 C Source Steering Reagent

Verma, Fooleswar,Shukla, Prashant,Bhardiya, Smita R.,Singh, Manorama,Rai, Ankita,Rai, Vijai K.

, (2019)

Unprecedented direct access to terminal enones via α-methylenation of aryl ketones to form C=C bond is achieved under visible-light conditions using methanol as one carbon source substrate and solvent as well. The reaction involves Cu@g-C3N4-catalysed in situ oxidation of methanol into formaldehyde followed by dehydrative cross aldol type reaction. Various aryl ketones react efficiently with MeOH, producing α,β-unsaturated carbonyl compounds only in 4–8 h at room temperature in excellent yield (84–97%). Operational simplicity, wide substrate scope, ambient reaction conditions, visible-light photocatalysis and novel application of MeOH as methylene donor substrate are the salient features making the envisaged protocol mild, efficient and green alternative to the existing methods for synthesis of such fine chemicals. (Figure presented.).

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