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31020-78-7

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31020-78-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31020-78-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,0,2 and 0 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 31020-78:
(7*3)+(6*1)+(5*0)+(4*2)+(3*0)+(2*7)+(1*8)=57
57 % 10 = 7
So 31020-78-7 is a valid CAS Registry Number.

31020-78-7Relevant articles and documents

An environmentally friendly Mukaiyama aldol reaction catalyzed by a strong Bronsted acid in solvent-free conditions

Barbero, Margherita,Bazzi, Stefano,Cadamuro, Silvano,Dughera, Stefano,Magistris, Claudio,Smarra, Alessandra,Venturello, Paolo

experimental part, p. 2192 - 2197 (2011/04/26)

o-Benzenedisulfonimide, a new strong bench-stable Bronsted acid, has been shown to efficiently catalyze the Mukaiyama aldol reaction of aldehydes or dimethyl acetals with silyl enol ethers under mild solvent-free reaction conditions.

A new protocol for synthesis of α,β-unsaturated ketones using zirconium tetrachloride under microwave irradiation

Bora, Utpal,Saikia, Anil,Boruah, Romesh C.

, p. 2523 - 2526 (2007/10/03)

A facile one-pot synthesis of α,β-unsaturated carbonyl compound has been accomplished from ZrCl4 mediated condensation of α-bromo ketones with aryl aldehydes under microwave irradiation.

Synthesis of α.α'-bisbenzylidenecycloalkanones containing one amidine function

Vieweg,Wagner

, p. 785 - 788 (2007/10/07)

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