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116836-61-4

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116836-61-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 116836-61-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,8,3 and 6 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 116836-61:
(8*1)+(7*1)+(6*6)+(5*8)+(4*3)+(3*6)+(2*6)+(1*1)=134
134 % 10 = 4
So 116836-61-4 is a valid CAS Registry Number.

116836-61-4Relevant articles and documents

A mechanochemical approach to access the proline-proline diketopiperazine framework

Pétry, Nicolas,Benakki, Hafid,Clot, Eric,Retailleau, Pascal,Guenoun, Farhate,Asserar, Fatima,Sekkat, Chakib,Métro, Thomas-Xavier,Martinez, Jean,Lamaty, Frédéric

, p. 2169 - 2178 (2017/11/16)

Ball milling was exploited to prepare a substituted proline building block by mechanochemical nucleophilic substitution. Subsequently, the mechanocoupling of hindered proline amino acid derivatives was developed to provide proline-proline dipeptides under solvent-free conditions. A deprotection-cyclization sequence yielded the corresponding diketopiperazines that were obtained with a high stereoselectivity which could be explained by DFT calculations. Using this method, an enantiopure disubstituted Pro-Pro diketopiperazine was synthesized in 4 steps, making 5 new bonds using a ball mill.

Synthesis of both enantiomers of C2 symmetric trans-2,5- bis(hydroxymethyl)pyrrolidine. Lipase mediated sequential kinetic resolutions

Sibi,Lu

, p. 4915 - 4918 (2007/10/02)

Lipase mediated sequential kinetic resolution has been employed to give both enantiomers of trans-2,5-bis(hydroxymethyl)pyrrolidine in optically pure form. The effect of different parameters on the ee and yields in these resolutions are also reported.

Base-Catalysed Epimerization Behavior and Unusual Reactivity of N-Substituted Derivatives of 2,5-Dicarbalkoxypyrrolidine. Preparation of a Novel Mixed Carbamic Carbonic Anhydride by a 4-(Dimethylamino)pyridine-Catalyzed Acylation

Kemp, D.S.,Curran, Timothy P.

, p. 5729 - 5731 (2007/10/02)

The equilibration of cis-trans isomers of 1-substituted 2,5-dicarbalkoxypyrrolidine derivatives (1 = CH2Ph, H, CN, CO2R) results in nearly 1:1 mixtures, contrary to a literature report for 1-benzyl-2,5-dicarbalkoxypyrrolidine.Apparent conversion to the tr

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