The preparation of halogenotrimolybdate(II) compounds

1967 ◽  
Vol 20 (5) ◽  
pp. 869 ◽  
Author(s):  
GB Allison ◽  
IR Anderson ◽  
JC Sheldon
Keyword(s):  
Acetic Acid ◽  
Ammonium Chloride ◽  
Redox Reaction ◽  
Rapid Reaction ◽  
New Compounds

The preparation of halogenotrimolybdate(II) compounds containing the staphylonuclear groups, (Mo3Cl13)7-, (Mo3Br13)7-, (Mo3Cl12)6-,(Mo3Cl11)5-, (Mo3Br11)5-, (Mo3Br11)5- has been thoroughly examined and 11 new compounds are reported. No iodomolybdate(II) compounds were observed. When (NH4)7Mo3Cl13,H2O is heated in vacuum, ammonium chloride is evolved but the final product is never MoCl2. This chloromolybdate(II) undergoes rapid reaction with refluxing acetic acid to give an approximately two-thirds yield of molybdenum(II) acetate. This suggests the cleaving of an Mo3 group to give Mo2(CH3CO2)4. Crystalline [Co en3]3Mo3Cl15,6H2O undergoes spontaneous intramolecular redox reaction which is stimulated by light, or moisture, but not oxygen.

scholarly journals Synthesis of Some Novel Fused Imidazo [2, 1-b] [1, 3] Thiazole and Imidazo [2, 1-b] Thiazolo [5, 4-d] Isoxazole Derivatives

2012 ◽  
Vol 9 (3) ◽  
pp. 1518-1525 ◽  
Author(s):  
Hamid Reza Jaberi ◽  
Hadi Noorizadeh
Keyword(s):  
Acetic Acid ◽  
Sodium Acetate ◽  
Carbon Disulphide ◽  
Thiazole Derivatives ◽  
H Nmr ◽  
Nmr Data ◽  
Elemental Analyses ◽  
New Compounds ◽  
Isoxazole Derivatives ◽  
C Nmr

In this work we describe the synthesis of some novel fused imidazo [2, 1-b] [1, 3] thiazole derivatives. The reaction of 1, 2-diaminoethane 1 with carbon disulphide in H2O/ETOH as solvent furnishes 4, 5-dihydro-1H-imidazol-2-thiol 2 under reflux condition. the reaction of 4,5-dihydro-1H-imidazol-2-thiol on treatment with ethylchloro acetate and aromatic aldehyde in presence of anhydrous sodium acetate and acetic acid as solvent to give (Z)-2-(arylidene)-5,6-dihydroimidazo [2,1-b] [1,3] thiazol-3(2H)-one 3a-j. Compounds 3a-j was condensed with hydroxylamine to give 3-(aryl)-2, 3, 6, 7-tetrahydroimidazo [2, 1-b] [1,3] thiazolo [5, 4-d] isoxazole 4a-j. The structures of the new compounds were established by elemental analyses, IR,1H NMR and13C NMR data.

Note on the Determination of Exchangeable Sodium in Soils

1930 ◽  
Vol 20 (3) ◽  
pp. 355-358 ◽  
Author(s):  
Rice Williams
Keyword(s):  
Acetic Acid ◽  
Ammonium Chloride ◽  
Uranyl Acetate ◽  
Exchangeable Sodium ◽  
Method Of Determination ◽  
Good Agreement

1. The application of the zinc uranyl acetate method to the determination of exchangeable sodium in soils is discussed.2. Using this method of determination, good agreement was found between the exchangeable sodium extracted by 0·5 N acetic acid and that extracted by N ammonium chloride.3. The procedure for estimating sodium in acetic acid extracts is described, and the results for a number of typical non-saline Welsh soils are given.

scholarly journals New Synthetic Routes for 1-Benzyl-1,4,7,10-tetraazacyclododecane and 1,4,7,10-Tetraazacyclododecane-1-acetic Acid Ethyl Ester, Important Starting Materials for Metal-coded DOTA-Based Affinity Tags

2007 ◽  
Vol 62 (3) ◽  
pp. 397-406 ◽  
Author(s):  
Stephan W. Kohl ◽  
Katharina Kuse ◽  
Markus Hummert ◽  
Herbert Schumann ◽  
Clemens Mügge ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Ethyl Ester ◽  
Nmr Spectra ◽  
Acid Ethyl Ester ◽  
Affinity Tags ◽  
X Ray ◽  
H Nmr ◽  
Synthetic Routes ◽  
New Compounds ◽  
C Nmr

Two improved routes to synthesize 1-benzyl-1,4,7,10-tetraazacyclododecane (6) and 1,4,7,10- tetraazacyclododecane-1-acetic acid ethyl ester (11) are described as well as the synthesis of 1-{2-[4-(maleimido-N-propylacetamidobutyl)amino]-2-oxoethyl}-1,4,7,10-tetraazacyclododecane- 4,7,10-triacetic acid (17) and its Y, Ho, Tm, and Lu complexes. The 1H and 13C NMR spectra of the new compounds as well as the single crystal X-ray structure analyses of the intermediates 4-benzyl-1,7-bis(p-toluenesulfonyl)diethylenetriamine (3) and 1,4,7-tris(p-toluenesulfonyl)diethylenetriamine (7) are reported and discussed. The rare earth complexes of 17 have been characterized by 1H NMR spectroscopy and MALDI-TOF mass spectrometry.

scholarly journals Synthesis, Characterization and Thermal Analysis of New Cu(II) Complexes with Hydrazide Ligands

2010 ◽  
Vol 7 (s1) ◽  
pp. S278-S282 ◽  
Author(s):  
Saber Rajaei ◽  
Shahriare Ghammamy ◽  
Kheyrollah Mehrani ◽  
Hajar Sahebalzamani
Keyword(s):  
Thermal Stability ◽  
Thermal Analysis ◽  
Acetic Acid ◽  
Ir Spectroscopy ◽  
Coordination Mode ◽  
Azomethine Nitrogen ◽  
Excellent Thermal Stability ◽  
Spectral Techniques ◽  
Ft Ir ◽  
New Compounds

A number of new complexes have been synthesized by reaction of novel ligands acetic acid(4-methyl-benzylidene)hydrazide (L1) and acetic acid(naphthalen-1-ylmethylene)hydrazide (L2) with copper(II) nitrate. These new compounds were characterized by elemental analysis, TG, DTA, IR spectroscopy, UV spectral techniques. The changes observed between the FT-IR and UV-Vis spectra of the ligands and of the complexes allowed us to establish the coordination mode of the metal in complexes. The results suggest that the Schiff bases L1and L2coordinate as univalent anions with their bidentate N,O donors derived from the carbonyl and azomethine nitrogen. Also the probing of thermal analysis complexes can detect which complex has excellent thermal stability.

Synthesis and Antimicrobial Activity of Novel Oxothiazolidine Derivatives

2020 ◽  
Vol 5 (2) ◽  
pp. 91-96
Author(s):  
Balasaheb P. Pagar
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Acetic Acid ◽  
Functional Group ◽  
Acid Hydrazide ◽  
Acid Ethyl Ester ◽  
Diffusion Method ◽  
New Compounds ◽  
Agar Well Diffusion Method

In this article, acid hydrazide 2, a functional group, was synthesized by the reaction of (4-chloro-12- methyl-16,17-dihydro-15-thia-6,11-diaza-cyclopenta[a]phenanthren-7-ylsulfanyl)acetic acid ethyl ester (1) with hydrazine yield (4-chloro-12-methyl-16,17-dihydro-15-thia-6,11-diazacyclopenta[a]- phenanthren-7-ylsulfanyl)acetic acid hydrazide (2) is discussed. The reactive acid hydrazide compound 2 was utilized for the synthesis of amides 3, Schiff’s bases 4 and thiazolidine 5 derivatives. The structures of target compounds were confirmed by elemental analysis and spectral data. The antimicrobial activity of new compounds were studied against Streptococcus sp., Bacillus megaterium, Staphylococcus aureus, Escherichia coli, Bacillus cereus, Bacillus subtilis, Proteus valgaris and Pseudomonas aeroginosa by the agar well diffusion method. Compounds 4b, 5a, 5b and 5c showed good antimicrobial activity

New Compounds. Di-(p-chlorophenyl)-acetic Acid

1945 ◽  
Vol 67 (1) ◽  
pp. 156-156 ◽  
Author(s):  
Oliver Grummitt ◽  
Allen Buck ◽  
James Stearns
Keyword(s):  
Acetic Acid ◽  
New Compounds
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