cas 140-22-7, 1,5-DIPHENYLCARBAZIDE | Articles data ｜lookchem

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140-22-7

Articles about 140-22-7Total 5 be found

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Noller
p. 1132
(1930)
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A synthetic strategy for switching the single ion anisotropy in tetrahedral Co(II) complexes
Four novel mononuclear tetrahedral cobalt(ii) complexes containing exocyclic mesoionic ligands of molecular formulae [CoII(L1)(X)2(MeCN)] X = Cl (1) or Br (2) and [CoII(L2)(X)2(MeCN)], X = Cl (3) or Br (4) have been reported. It is found that simple substitution of L1 (O donor in 1 and 2) by L2 (S donor in 3 and 4) results in switching of the single ion magnetic anisotropy parameter (D) from positive to negative, with a significant change in magnitude.
Vaidya, Shefali,Upadhyay, Apoorva,Singh, Saurabh Kumar,Gupta, Tulika,Tewary, Subrata,Langley, Stuart K.,Walsh, James P. S.,Murray, Keith S.,Rajaraman, Gopalan,Shanmugam, Maheswaran
supporting information
p. 3739 - 3742
(2015/03/31)

Efficient method of synthesis of N,N′-disubstituted ureas/thioureas by a Zinc chloride catalyzed thermal reaction
Symmetrically N,N'-disubstituted ureas/thioureas were synthesized by heating amines or phenyl hydrazine and urea/thiourea on a preheated hot plate at 80-85C under solvent-free conditions in the presence of a catalytic amount of ZnCl2 as a catalyst. The protocol has the advantages of not using toxic phosgene and other hazardous substrates or organic solvents. Increased reaction rate, good yield, and a simple workup procedure are involved.
Pasha,Madhusudana Reddy
experimental part
p. 2928 - 2934
(2009/12/03)

Efficient synthesis of N,N′-disubstituted ureas/thioureas catalyzed by iodine
Iodine is an efficient catalyst for the synthesis of symmetrically N,N′-disubstituted ureas/thioureas by heating respective amines or phenyl hydrazine and urea/thiourea on a preheated hot plate at 90-95°C, under solvent-free conditions. The yields are excellent, and the reactions go to complete within 5-10 min. Copyright Taylor & Francis Group, LLC.
Pasha,Jayashankara
p. 1787 - 1793
(2007/10/03)

A novel method for the synthesis of disubstituted ureas and thioureas under microwave irradiaton
Several symmetrically disubstituted ureas and thioureas are synthesized by heating of urea or thiourea with aromatic amines or phenylhydrazine under environmentally benign conditions without any solvent in a conventional microwave oven.
Mojtahedi, Mohammad M.,Saidi, Mohammad R.,Bolourtchian, Mohammad
p. 710 - 711
(2007/10/03)

Effects of amines and hydrazines on benzoxazolinone and benzoxazolinethione
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Wagner,Leistner
p. 345 - 347
(2007/10/05)

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Chemical Properties

Appearance/Colour :white crystals or powder
Melting Point: 170-175 °C(lit.)
Boiling Point: 385.1°C (rough estimate)
Density: 1.292 g/cm³
Solubility:aqueous acetone: passes test
Storage Temp.:2-8°C
Refractive Index: 1.697
PKA: 9.98±0.43(Predicted)
Sensitive: Light Sensitive
Merck: 14,3321
BRN: 752039
PSA: 65.19000
LogP: 3.26760

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