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1260485-23-1

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1260485-23-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1260485-23-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,0,4,8 and 5 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1260485-23:
(9*1)+(8*2)+(7*6)+(6*0)+(5*4)+(4*8)+(3*5)+(2*2)+(1*3)=141
141 % 10 = 1
So 1260485-23-1 is a valid CAS Registry Number.

1260485-23-1Downstream Products

1260485-23-1Relevant articles and documents

Efficient synthesis of chromones with alkenyl functionalities by the heck reaction

Patonay, Tams,Vasas, Attila,Kiss-Szikszai, Attila,Silva, Artur M. S.,Cavaleiro, Jos A. S.

experimental part, p. 1582 - 1593 (2011/08/04)

The usefulness of the Heck reaction in the field of chromones has been demonstrated. Bromochromones with the halogen atom in their rings A and B were reacted with various terminal alkenes to give hitherto unknown alkenyl-substituted chromones. Reactivity of the substrates was found to markedly depend on the position of the bromine atom. Under phosphine-free conditions using a phase-transfer catalyst additive (tetrabutylammonium bromide), shorter reaction periods and usually higher yields were obtained.

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