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678187-53-6

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678187-53-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 678187-53-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,8,1,8 and 7 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 678187-53:
(8*6)+(7*7)+(6*8)+(5*1)+(4*8)+(3*7)+(2*5)+(1*3)=216
216 % 10 = 6
So 678187-53-6 is a valid CAS Registry Number.

678187-53-6Relevant articles and documents

Investigation of the reductive cleavage of BINAP and application to the rapid synthesis of phospholes

Gallop, Chris W.D.,Bobin, Mariusz,Hourani, Petra,Dwyer, Jessica,Roe, S. Mark,Viseux, Eddy M. E.

, p. 6522 - 6528 (2013/07/26)

A rapid and easy entry into λ3-phospholes and λ4-phosphole oxides derived from BINAP is reported herein featuring a variety of C and Si substituents and functional groups, as well the investigative work on the mechanistic pathway. DFT calculations using B3LYP functionals have been carried out to rationalize the mechanism. The observed experimental 31P resonance shifts were compared with the calculated shifts of the proposed intermediates after calibration of the shielding tensors. The calculations included the use of polarizable continuum models to take into account solvent effects and were found to be in excellent agreement, providing further evidence for the proposed mechanism.

Rhodium(I)-catalysed conjugate phosphination of cyclic α,β- unsaturated ketones with silylphosphines as masked phosphinides

Trepohl, Verena T.,Oestreich, Martin

, p. 3300 - 3302 (2008/02/13)

Nucleophile-activation of the phosphorus(iii)-silicon linkage in silylphosphines generates a nucleophilic phosphorus(iii) equivalent thereby allowing for a rhodium-catalysed conjugate phosphination of β-substituted α,β-unsaturated acceptors. The Royal Soc

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