METALLO-ORGANIC COMPOUNDS CONTAINING METAL–NITROGEN BONDS: PART IV. SOME BIS-(PRIMARY AMINO)-TITANIUM COMPOUNDS

1963 ◽  
Vol 41 (1) ◽  
pp. 134-138 ◽  
Author(s):  
D. C. Bradley ◽  
E. G. Torrible

The aminolysis reactions involving primary amines with either Ti(NMe2)4 or Ti(NEt2)4 have been studied. The primary amines behave as bifunctional reactants, forming colored, insoluble, non-volatile bis-(primary amino)-titanium compounds Ti(NR)2 which (except for R = C6H5) are highly reactive towards water or alcohols. With n-butylamine, some soluble polymers of the general formula Tix(NBun)2x−2(NEt2)4 were isolated. With tert-butyl-amine the dimers Ti2(NBut)2(NMe2)4 and Ti2(NBut)2(NHBut)2(NMe2)2 were obtained. The structures of these polymeric metal–nitrogen compounds are discussed.

2020 ◽  
Vol 27 (14) ◽  
pp. 2335-2360 ◽  
Author(s):  
Chao Li ◽  
Dayong Shi

: Marine organisms are abundant sources of bioactive natural products. Among metabolites produced by sponges and their associated microbial communities, halogenated natural compounds accounted for an important part due to their potent biological activities. The present review updates and compiles a total of 258 halogenated organic compounds isolated in the past three decades, especially brominated derivatives derived from 31 genera of marine sponges. These compounds can be classified as the following classes: brominated polyunsaturated lipids, nitrogen compounds, brominated tyrosine derivatives and other halogenated compounds. These substances were listed together with their source organisms, structures and bioactivities. For this purpose, 84 references were consulted.


CrystEngComm ◽  
2021 ◽  
Author(s):  
Alyssa K. Adcock ◽  
Alexander C Marwitz ◽  
Lulio A. Sanz ◽  
Russell Lee Ayscue ◽  
Jeffery A. Bertke ◽  
...  

Four heteroleptic bismuth-organic phases bearing 2,2';6',2"-terpyridine (terpy) and 2-thenoyltrifluoroacetone (TTA) of the general formula BiXy(TTA)3-y(terpy), where X = NO3 (2), Cl (3), Br (4), Br2 (5), were synthesized at room...


2009 ◽  
Vol 74 (11-12) ◽  
pp. 1777-1789 ◽  
Author(s):  
Petr Zuman

There are two possibilities how to follow equilibria of organic compounds established in aqueous solutions using polarography: for very fast reactions, information can be obtained from shifts of half-wave potentials. For slowly established equilibria, the changes in the limiting current are followed. In both cases variation of the half-wave potentials or limiting currents with concentration of a reactant, present in excess, is followed. The types of reactions, which had been followed in this way, are as follows: hydration–dehydration equilibria, additions of hydroxide ion to carbonyl and nitroso compounds, the role of slowly established acid–base equilibria involving C-acids; further also reactions involving the addition of ammonia, primary amines, hydroxylamine, and hydrazine to carbonyl compounds.


1986 ◽  
Vol 41 (2) ◽  
pp. 144-148 ◽  
Author(s):  
Max Herberhold ◽  
Wolfgang Jellen

The first seleninylamine, tBuNSeO, was prepared from tert-butylamine, tBuNH2, and SeOCl2 (3:1). The selenium diimide Se(NBut)2 was isolated from the corresponding reaction of tBuNH2 and SeCl4 (6:1); it decomposes at ambient temperature to give cyclic Se3(NBut)2. The new compounds were characterized on the basis of their IR , 1H and 13C NMR and mass spectra.


Synlett ◽  
1990 ◽  
Vol 1990 (10) ◽  
pp. 621-623 ◽  
Author(s):  
Martyn J. Earle ◽  
Robin A. Fairhurst ◽  
Harry Heaney ◽  
George Papageorgiou

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