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124994-14-5

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124994-14-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124994-14-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,9,9 and 4 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 124994-14:
(8*1)+(7*2)+(6*4)+(5*9)+(4*9)+(3*4)+(2*1)+(1*4)=145
145 % 10 = 5
So 124994-14-5 is a valid CAS Registry Number.

124994-14-5Relevant articles and documents

Investigations in the transition metal catalyzed aziridination of olefins, amination, and other insertion reactions with Bromamine-T as the source of nitrene

Chanda,Vyas,Bedekar

, p. 30 - 34 (2001)

Investigations into the transition metal catalyzed aziridination of olefins with Bromamine-T as a new source of nitrene is presented in this account. Comparison of Chloramine-T and Bromamine-T in this reaction indicates that the latter is superior as the source of nitrene. Systematic study with several transition metal based catalysts suggests that Cu-halides are the best catalysts. A first report of aziridination under microwave and ultrasound irradiation conditions is also presented. Copper-catalyzed aziridination of methyl cinnamate with Bromamine-T did not proceed at ambient temperature but was effected smoothly under ultrasound irradiation to furnish trans-aziridine selectively, while under microwave irradiation, a mixture of cis and trans isomers, was obtained. It has been demonstrated that aziridination of olefins proceeds smoothly with inexpensive bleaching powder. Preliminary results of Rh-catalyzed benzylic insertion reactions with Bromamine-T are included in this account.

Application of the Evans aziridination procedure to 2-substituted acrylates and cinnamates: An expedient route to α-substituted α- and β- amino acids

Dauban, Philippe,Dodd, Robert H.

, p. 5739 - 5742 (2007/10/03)

Reaction of the title compounds with PhI = NSO2Ar (Ar = p-tolyl or p- nitrophenyl) in the presence of catalytic copper (II) triflate in acetonitrile gave the corresponding 2 and/or 3-substituted aziridine-2- carboxylates in generally good yield

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