2-Nitroguanidine Derivatives. Part 8. Synthesis and Cyclizations of N′1,N′2-Bis(N2-nitrocarbamimidoyl) Dicarboxylic Acid Dihydrazides and Ethyl [2-(N2-Nitrocarbamimidoyl)hydrazino](oxo)acetate.

ChemInform ◽  
2005 ◽  
Vol 36 (24) ◽  
Author(s):  
E. L. Metelkina ◽  
T. A. Novikova
ChemInform ◽  
2005 ◽  
Vol 36 (19) ◽  
Author(s):  
E. L. Metelkina ◽  
T. A. Novikova ◽  
S. N. Berdonosova ◽  
D. Yu. Berdonosov ◽  
V. S. Grineva

2004 ◽  
Vol 40 (10) ◽  
pp. 1412-1414 ◽  
Author(s):  
E. L. Metelkina ◽  
T. A. Novikova ◽  
S. N. Berdonosova ◽  
D. Yu. Berdonosov ◽  
V. S. Grineva

1991 ◽  
Vol 56 (9) ◽  
pp. 1908-1915 ◽  
Author(s):  
Jaroslav Holeček ◽  
Antonín Lyčka ◽  
Milan Nádvorník ◽  
Karel Handlíř

Infrared spectroscopy and multinuclear (13C, 17O, and 119Sn NMR spectroscopy have been used to study the structure of bis(1-butyl)tin(IV) carboxylates of dicarboxylic acids (1-C4H9)2. Sn(X(COO)2), where X = (CH2)n (n = 0-8), CH=CH (cis and trans) and C6H4 (ortho and para).The crystalline compounds are formed by linear or cyclic oligomers or polymers whose basic building units represent a grouping composed of the central tin atom substituted by two 1-butyl groups and coordinated with both oxygen atoms of two anisobidentate carboxylic groups derived from different molecules of a dicarboxylic acid. The environment of the tin atom has a shape of a trapezoidal bipyramid. When dissolvet in non-coordinating solvents, the compounds retain the oligomeric character with unchanged structure of environment of the central tin atom. In the media of coordinating solvents the bis(1-butyl)tin(IV) carboxylates of dicarboxylic acids form complexes whose central hexacoordinated tin atom binds two molecules of the solvent trough their donor atoms. Carboxylic groups form monodenate linkages in these complexes.


2019 ◽  
Vol 123 (44) ◽  
pp. 9594-9599 ◽  
Author(s):  
Jonas Elm ◽  
Noora Hyttinen ◽  
Jack J. Lin ◽  
Theo Kurtén ◽  
Nønne L. Prisle

Synthesis ◽  
2014 ◽  
Vol 46 (05) ◽  
pp. 596-599 ◽  
Author(s):  
Mohamed Eddaoudi ◽  
Łukasz Weseliński ◽  
Ryan Luebke

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