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1398056-84-2

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1398056-84-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1398056-84-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,8,0,5 and 6 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1398056-84:
(9*1)+(8*3)+(7*9)+(6*8)+(5*0)+(4*5)+(3*6)+(2*8)+(1*4)=202
202 % 10 = 2
So 1398056-84-2 is a valid CAS Registry Number.

1398056-84-2Downstream Products

1398056-84-2Relevant articles and documents

Synthesis of non-symmetrical 3,4-diaryl-substituted pyrroles: Implementation for the preparation of lamellarin R

Zavala-Gómez, Héctor,Ramírez-Rodríguez, Armando,Vázquez, Alfredo

, p. 677 - 683 (2018/01/08)

A straightforward method for synthesising symmetrical and non-symmetrical 3,4-diaryl-substituted pyrroles is proposed, consisting of (i) the condensation reaction between phenylacetonitriles and aldehydes to give acrylonitriles, (ii) the conjugate additio

2,4- vs 3,4-disubsituted pyrrole synthesis switched by copper and nickel catalysts

Chen, Feng,Shen, Tao,Cui, Yuxin,Jiao, Ning

supporting information, p. 4926 - 4929,4 (2012/12/12)

A novel and efficient copper or nickel catalyzed highly selective denitrogenative annulation of vinyl azides with aryl acetaldehydes has been developed. 2,4- and 3,4-diaryl substituted pyrroles, which are difficult to synthesize by the reported methods, can be highly regioselectively prepared by this protocol simply switched by the selection of the transition metal catalysts. Compared with the reported acidic or basic conditions for polysubstituted pyrrole synthesis, the present reaction conditions are mild, neutral, and very simple without any additives.

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