SYNTHESIS OF CYCLOCARBINOL AND CYCLOCARBINOLATE DERIVATIVES OF CYMANTRENE AND THEIR ANTI-SMOKE EFFECTIVENESS FOR DIESEL FUELS

The results of the development of synthesis technique of cyclocarbinol derivatives of cymantrene and the production of relevant barium cyclocarbinolate metal complexes – new, advanced anti-smoke additives were presented. Comparative data on the anti-smoke effectiveness of synthesized compounds and known antismoke additives for diesel fuels were also presented. Established, results of the development of a single-stage synthesis method of cyclocarbinol derivatives of cymantrene can be assumed as a basic process for producing high-effective anti-smoke additives to diesel fuels that comply with the requirements of ecology in operation of diesel vehicles.

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Cross-Condensation of Derivatives of Cyanoacetic Acid and Carbonyl Compounds. Part 1. Single-Stage Synthesis of 1′-Substituted 6-Amino-spiro-4-(piperidine-4′)-2H,4H-pyrano [2,3-c]pyrazole-5-carbonitriles.

ChemInform ◽

10.1002/chin.200401103 ◽

2004 ◽

Vol 35 (1) ◽

Author(s):

Anatoliy M. Shestopalov ◽

Yuliya M. Emeliyanova ◽

Aleksandr A. Shestopalov ◽

Lyudmila A. Rodinovskaya ◽

Zukhra I. Niazimbetova ◽

...

Keyword(s):

Carbonyl Compounds ◽

Single Stage ◽

Cyanoacetic Acid ◽

Stage Synthesis ◽

Derivatives Of

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Cross-condensation of derivatives of cyanoacetic acid and carbonyl compounds. Part 1: Single-stage synthesis of 1′-substituted 6-amino-spiro-4-(piperidine-4′)-2 H ,4 H -pyrano[2,3- c ]pyrazole-5-carbonitriles

Tetrahedron ◽

10.1016/s0040-4020(03)01178-5 ◽

2003 ◽

Vol 59 (38) ◽

pp. 7491-7496 ◽

Cited By ~ 56

Author(s):

Anatoliy M Shestopalov ◽

Yuliya M Emeliyanova ◽

Aleksandr A Shestopalov ◽

Lyudmila A Rodinovskaya ◽

Zukhra I Niazimbetova ◽

...

Keyword(s):

Carbonyl Compounds ◽

Single Stage ◽

Cyanoacetic Acid ◽

Stage Synthesis ◽

Derivatives Of

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Functionalised Terpyridines and Their Metal Complexes—Solid-State Interactions

Chemistry ◽

10.3390/chemistry3010016 ◽

2021 ◽

Vol 3 (1) ◽

pp. 199-227

Author(s):

Young Hoon Lee ◽

Jee Young Kim ◽

Sotaro Kusumoto ◽

Hitomi Ohmagari ◽

Miki Hasegawa ◽

...

Keyword(s):

Solid State ◽

Metal Complexes ◽

Crystal Structures ◽

Weak Interactions ◽

Dispersion Interactions ◽

Derivatives Of

Analysis of the weak interactions within the crystal structures of 33 complexes of various 4′-aromatic derivatives of 2,2′:6′,2″-terpyridine (tpy) shows that interactions that exceed dispersion are dominated, as expected, by cation⋯anion contacts but are associated with both ligand–ligand and ligand–solvent contacts, sometimes multicentred, in generally complicated arrays, probably largely determined by dispersion interactions between stacked aromatic units. With V(V) as the coordinating cation, there is evidence that the polarisation of the ligand results in an interaction exceeding dispersion at a carbon bound to nitrogen with oxygen or fluorine, an interaction unseen in the structures of M(II) (M = Fe, Co, Ni, Cu, Zn, Ru and Cd) complexes, except when 1,2,3-trimethoxyphenyl substituents are present in the 4′-tpy.

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The Exchange of Cyclometalated Ligands

Molecules ◽

10.3390/molecules26010210 ◽

2021 ◽

Vol 26 (1) ◽

pp. 210

Author(s):

Alexander D. Ryabov

Keyword(s):

Transition Metal ◽

Metal Complexes ◽

Transition Metal Complexes ◽

Bond Activation ◽

Bond Cleavage ◽

Cyclopalladated Complexes ◽

Derivatives Of ◽

Cyclometalated Ligand ◽

Incoming Ligand

Reactions of cyclometalated compounds are numerous. This account is focused on one of such reactions, the exchange of cyclometalated ligands, a reaction between a cyclometalated compound and an incoming ligand that replaces a previously cyclometalated ligand to form a new metalacycle: + H-C*~Z ⇄ + H-C~Y. Originally discovered for PdII complexes with Y/Z = N, P, S, the exchange appeared to be a mechanistically challenging, simple, and convenient routine for the synthesis of cyclopalladated complexes. Over four decades it was expanded to cyclometalated derivatives of platinum, ruthenium, manganese, rhodium, and iridium. The exchange, which is also questionably referred to as transcyclometalation, offers attractive synthetic possibilities and assists in disclosing key mechanistic pathways associated with the C–H bond activation by transition metal complexes and C–M bond cleavage. Both synthetic and mechanistic aspects of the exchange are reviewed and discussed.

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