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34386-38-4

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34386-38-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34386-38-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,3,8 and 6 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 34386-38:
(7*3)+(6*4)+(5*3)+(4*8)+(3*6)+(2*3)+(1*8)=124
124 % 10 = 4
So 34386-38-4 is a valid CAS Registry Number.

34386-38-4Relevant articles and documents

Gas-Phase Reactions of Charged Electrophiles with Styrene and Phenylacetylene

Crestoni, Maria Elisa,Fornarini, Simonetta

, p. 6008 - 6014 (1989)

The reactions of styrene and phenylacetylene toward charged electrophiles have been studied in the gas phase by a radiolytic technique, supported by chemical ionization mass spectrometry.The two substrates undergo a methylation reaction by Me2F(1+) both at the ring and at the side chain, at variance with the side-chain electrophilic attack prevailing in condensed phase.The nitrating (MeONO2)H(1+) ion selectively nitrates the orto position of styrene, an unprecedented ring nitration on this substrate.The formation of neutral isomeric products is determined by the efficiency of deprotonation of their ionic precursors and is sensitive interalia to the presence of oxygen nucleophiles.The overall reactivity pattern is rationalized in terms of preferential electrostatic interactions between the reactants in a preliminary collision complex, whereby an incoming ROH molecule can simulate a "solvating" environment, shifting the reactivity in the direction observed in solution.

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