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1440-28-4

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1440-28-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1440-28-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,4,4 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1440-28:
(6*1)+(5*4)+(4*4)+(3*0)+(2*2)+(1*8)=54
54 % 10 = 4
So 1440-28-4 is a valid CAS Registry Number.

1440-28-4Downstream Products

1440-28-4Relevant articles and documents

Facile one-pot synthesis of 2-aryl-substituted nitriles and 2-aryl-3-keto nitriles via benzyne reaction

Kamila, Sukanta,Koh, Benjamin,Biehl, Edward R.

, p. 3493 - 3507 (2006)

2-Aryl-substituted nitriles were prepared in good to excellent yields in a one-pot reaction by the reaction of benzyne, generated using neutral conditions from (phenyl)[o-(trimethylsilyl)-phenyl]iodonium triflate, and 2-lithionitriles. 3-Keto nitriles substituted at the 2-position were obtained in good yields when these reactions were trapped with acid chlorides. The mechanism of the benzyne reaction in terms of a N-lithiobenzocyclobutanimine intermediate is discussed. Copyright Taylor & Francis Group, LLC.

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