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616873-78-0

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616873-78-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 616873-78-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,1,6,8,7 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 616873-78:
(8*6)+(7*1)+(6*6)+(5*8)+(4*7)+(3*3)+(2*7)+(1*8)=190
190 % 10 = 0
So 616873-78-0 is a valid CAS Registry Number.

616873-78-0Downstream Products

616873-78-0Relevant articles and documents

Polymeric salen-Ti(IV) or V(V) complex catalyzed asymmetric synthesis of O-acetylcyanohydrins from KCN, Ac2O and aldehydes

Huang, Wei,Song, Yuming,Wang, Jing,Cao, Guoying,Zheng, Zhuo

, p. 10469 - 10477 (2007/10/03)

Polymeric salen-Ti(IV) and V(V) complexes were employed in the enantioselective O-acetyl cyanation of aldehydes with potassium cyanide and acetic anhydride. The crosslinked polymeric salen-Ti(IV) catalyst exhibited good activities and enantioselectivities, up to 91% ee with 99% conversion was obtained at -20°C with 1 mol% of catalyst (based on bimetallic catalytic unit). Moreover, six consecutive recyclings with the easily recovered crosslinked polymeric catalyst showed no obvious decrease in either activity or enantioselectivity. Linear polymeric salen-V(V) catalyst showed good catalytic efficiency too, up to 94% ee with 99% conversion was obtained at -42°C with 5 mol% of catalyst. Graphical Abstract.

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