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1309575-94-7

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1309575-94-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1309575-94-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,9,5,7 and 5 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1309575-94:
(9*1)+(8*3)+(7*0)+(6*9)+(5*5)+(4*7)+(3*5)+(2*9)+(1*4)=177
177 % 10 = 7
So 1309575-94-7 is a valid CAS Registry Number.

1309575-94-7Downstream Products

1309575-94-7Relevant articles and documents

Synthesis, characterization and X-ray studies of new chiral five-six-membered ring, [4.3.0] heterobicyclic system of monomeric boronates

Rivera, José María,Rincón, Susana,Farfán, Norberto,Santillan, Rosa

, p. 2420 - 2428 (2011/06/24)

Nine new boronates, six of them chiral, with five-six-membered ring heterobicycles were prepared by reaction of the Schiff bases and phenyl boronic acid. The boronates were fully characterized by spectroscopic techniques, NMR 1H, 13C, 11B, Infrared spectroscopy, mass spectrometry and elemental analysis. The reaction showed high diasteroselectivity, only in the case of compound 4c, containing a methyl substituent in the aliphatic moiety, the induction is low giving a 2:1 mixture of two diatereoisomers. The results showed that the preferred stereochemistry in the heterocycles is that where all substituents in the five membered ring and the phenyl group attached to boron atom are on the same side.

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