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14948-83-5

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14948-83-5 Usage

Synthesis Reference(s)

Tetrahedron Letters, 29, p. 3183, 1988 DOI: 10.1016/0040-4039(88)85116-5

Check Digit Verification of cas no

The CAS Registry Mumber 14948-83-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,9,4 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 14948-83:
(7*1)+(6*4)+(5*9)+(4*4)+(3*8)+(2*8)+(1*3)=135
135 % 10 = 5
So 14948-83-5 is a valid CAS Registry Number.
InChI:InChI=1/C7H15N3/c8-7(9)10-6-4-2-1-3-5-6/h6H,1-5H2,(H4,8,9,10)

14948-83-5Relevant articles and documents

Amidination of amines under microwave conditions using recyclable polymer-bound 1H-pyrazole-1-carboxamidine

Solodenko, Wladimir,Broeker, Patrick,Messinger, Josef,Schoen, Uwe,Kirschning, Andreas

, p. 461 - 466 (2007/10/03)

A convenient one-step transformation of primary and secondary amines into the corresponding unprotected guanidines using 4-benzyl-3,5-dimethyl-1H- pyrazole-1-carboxamidine and its polymer-bound variant is described. The scopes and limitations of the method, the microwave-assistance of amidination as well as a recycling protocol are examined. Georg Thieme Verlag Stuttgart.

A novel, facile methodology for the synthesis of N,N′-bis(tert-butoxycarbonyl)-protected guanidines using polymer-supported carbodiimide

Guisado, Olga,Martínez, Sonia,Pastor, Joaquín

, p. 7105 - 7109 (2007/10/03)

A novel methodology for the synthesis of guanidines from amines has been developed using polymer assisted synthesis, potentially allowing the preparation of series of compounds in a high throughput manner. The methodology comprises the use of polymer-supported carbodiimide as the activating agent for N,N′-bis(tert-butoxycarbonyl) thiourea with polymer-supported trisamine as a scavenger, followed by deprotection with trifluoroacetic acid. For the first time, polymer-supported carbodiimide has been utilized as an activating agent to synthesize guanidines.

N1- and N2-Substituted 2-Amino-5,6-dihydro-4(1H)-pyrimidinones (Heterocyclic Compounds, 79)

Wendelin, Winfried,Riedl, Renate

, p. 237 - 252 (2007/10/02)

The reactions of the monosubstituted guanidines 2b-h with methyl acrylate in dimethylformamide or ethanol as solvent preferentially afford 1-substituted 2-amino-5,6-dihydro-4(1H)-pyrimidinones 6b-h.The structures of 1-hexyl- and 1-benzyl-4-pyrimidinones 6c, e and of the picrate of 1-phenylpyrimidinone 6g were proved by comparison with authentic samples, which were prepared from N-substituted ethyl 3-amino-propionates 14c, e and g and cyanamide.Accordingly, 6g is not identical with authentic 2-phenylaminopyrimidinone 7g (prepared from 2-methylthio-4-pyrimidinone 10 and 2-thioxo-4-pyrimidinone 12 respectively, compare.N,N-Disubstituted guanidines 2i-m react with methyl acrylate in dimethylformamide as solvent to afford N2,N2-disubstituted 2-amino-5,6-dihydro-4-(1H)-pyrimidinones 7i-m.Action of morpholine-4-carboxamidine (2l) on methyl acrylate in ethanol yields 2-morpholinopyrimidinone 7l as byproduct and 3-ethoxy-N-propionamide (9l) as mainproduct.Keywords: Acrylic acid methylester, reactions; Guanidines, mono- and N,N-disubstituted; Propionamide, 3-ethoxy-N-; 4(1H)-Pyrimidinones, 2-amino; Pyrimidine-1-propionic acid ethylester, hexahydro-4-oxo-2-thioxo

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