Although Suzuki–Miyaura cross-coupling is one of the most convenient and well-developed reactions, its applications to asymmetric version deliver highly functionalized atropisomers or nonracemic coupling products have been less explored. Besides some excellent work reported intermittently, reaction remains a significant challenge, particularly for preparing heterocyclic atropisomers. A concise but critical knowledge on this topic may further inspire researchers across various subdisciplines...

Reactions of 5-{(pyridin-4-ylmethyl)amino} isophthalic acid (H2L1) with copper(II), zinc(II), and cadmium(II) were studied, the obtained metal–organic frameworks (MOFs) [{Cu(L1)(DMF)}·DMF·H2O]n (1), [Zn(L1)(H2O)]n (2), [Cd(L1)]n (3) characterized by elemental analysis, Fourier transform infrared spectroscopy, X-ray single-crystal diffraction. As shown crystallography, novel hybrid organic–inorganic coordination-driven assemblies which exhibit different two- three-dimensional (2D 3D)...

The novel self-assembled zinc(II) coordination polymers [Zn(L)(H2O)2]n (1), [Zn(L)(H2O)2]n·n(formamide) (2), [Zn(L)(H2O)2]n·n(N-methylformamide) (3), [Zn(L)(H2O)(formamide)]n (4), and [Zn3(L)2(formate)2(4,4′-bipyridine)3]n·2n(DMF)·2n(H2O) (5) (L = 5-acetamidoisophthalate) have been synthesized characterized by elemental microanalysis, infrared spectroscopy, thermogravimetric analysis, X-ray single crystal diffraction. 1, 2, 3 are one-dimensional (1D) that crystallize in monoclinic P21,...

Construction of the amide/peptide bond is one most encountered transformations in pharmaceutical and chemical industries. Traditional protocols rely on use undesirable organic solvents, such as N,N-dimethylformamide (DMF), N-methyl pyrrolidone (NMP), or dichloromethane (CH2Cl2). These solvents adversely impact environment, workers' safety, health. This has led academia industry to search develop greener more sustainable amide forming synthetic increase performance terms yield selectivity...

N-Donor tetrazole (TZ) derivatives possess physicochemical features, such as good thermostability/chemical stability, abundant coordination modes, high dipole moment, formation enthalpy, basicity and acidity, well fluorescence/luminescent magnetic behaviors, which make them widely utilized in both academic industrial fields, namely medicinal/biological chemistry, chemistry materials science. This review shows the progress synthesis, structures, catalytic applications activities of copper...

Iodine(<sc>iii</sc>) catalyzed metal free method for oxidation of alcohols and aldehydes in water.

The syntheses and structures of a [2×1+1×2] cocrystal [{CuIIL1NaI(H2O)2}{CuIIL1}2](NO3) (1) [3×1+5×1] [{(CuIIL1)2KI}(NO3)]·[{(CuIIL1)3KI2(μ-NO3)}(NO3)]·0.2H2O (2) derived from the hexadentate Schiff base compartmental ligand N,N′-ethylenebis(3-ethoxysalicylaldimine) (H2L1) are described. Compounds 1 2 crystallize in triclinic P1̅ monoclinic P21/c systems, respectively. structure consists [CuIIL1ΝaI(H2O)3]+ cation two mononuclear [CuIIL1] moieties. In dinuclear cation, metal centers doubly...

This investigation presents the syntheses, crystal structures, magnetic properties, and density functional theoretical modeling of behavior two heterobridged μ-phenoxo-μ(1,1)-azido dinickel(II) compounds [Ni(II)(2)(L(1))(2)(μ(1,1)-N(3))(N(3))(H(2)O)]·CH(3)CH(2)OH (1) [Ni(II)(2)(L(2))(2)(μ(1,1)-N(3))(CH(3)CN)(H(2)O)](ClO(4))·H(2)O·CH(3)CN (2), where HL(1) HL(2) are [1+1] condensation products 3-methoxysalicylaldehyde 1-(2-aminoethyl)-piperidine (for HL(1))/4-(2-aminoethyl)-morpholine HL(2)),...

Hydrothermal reactions of a lead(II) salt with 3-aminopyrazine-2-carboxylic acid (HL1) gave rise to series coordination compounds (1–6) having zero, one, two and three dimensional structures. X-ray diffraction structural analyses reveal that complexes [Pb(L1)2]2 (1) [Pb(L1)(OCHNH2)(η-OCHO)]2 (2) possess dinuclear structures, containing centre symmetry. Complexes [Pb2(L1)4(NHMeCHO)2]n (3) [Pb2(L1)4]n·(H2O)n·(2.5DMF)n (4) have 1D chain like [Pb5(L1)7(η-NO3)(μ-HCOO)(η-HCOO)]n·(DMF)n·(MeOH)n (5)...

Aqueous medium syntheses and nitroaldol catalytic studies of three pseudohalide bridged copper(<sc>ii</sc>) complexes characterized by single crystal X-ray structure analysis variable temperature magnetic are reported.

Abstract Oxidative coupling of primary amines to imines has been achieved by using a water soluble cobalt complex as catalyst and air the oxidant at near ambient conditions. Aromatic, heteroaromatic aliphatic were successfully converted corresponding with yields up 96 %. A 20 gram scale reaction for synthesis imine from benzylamine in good yield is also demonstrated this method. The found be reusable five cycles. It highly efficient, gives turnover number (TON) 128, shows chemoselectivity...

The synthesis, characterization and structure of a [3 × 1 + 2 2] cocrystal [(NiIIL1)2NaI(NO3)]·[{NiIIL1NaI(H2O)2}{NiIIL1}2(NO3)] derived from the hexadentate Schiff base compartmental ligand N,N′-ethylenebis(3-ethoxysalicylaldimine) (H2L1) are described. compound crystallizes in monoclinic system (space group C2/c). consists one trinuclear double-decker [(NiIIL1)2NaI]+ cation, dinuclear [NiIIL1NaI(H2O)2]+ cation two mononuclear [NiIIL1] moieties. Each coordinated water molecules unit is...

Syntheses, characterization and structures of heterodinuclear compound [CuIIL1BiIII(NO3)3] (1), sandwich type heterotrinuclear [(CuIIL1)2BaII(NO3)2]·0.2H2O (2), heterotetranuclear [{CuIIL1PbII(µ-NO3)(NO3)}2] (3) heterohexanuclear [2 × 1 + 4] cocrystal [(UVIO2)2(µ-H2O)2(NO3)4]·4[CuIIL1⊂(H2O)] (4) are described in this investigation (H2L1 = N,N′-ethylenebis(3-ethoxysalicylaldiimine)). Compounds 4 crystallize orthorhombic P212121 triclinic Pī systems, respectively, while the space group...

The work in this paper aims to portray a complete structural, magnetic, and theoretical description of two original end-to-end (EE) μ(1,3)-azide-bridged, cyclic tetranuclear Ni(II) clusters, [{Ni(II)(L(1))(μ(1,3)-N(3))(H(2)O)}(4)] (1) [{Ni(II)(L(2))(μ(1,3)-N(3))(H(2)O)}(4)] (2), where the ligands used achieve these species, HL(1) HL(2), are tridentate Schiff base obtained from [1 + 1] condensations salicylaldehyde with 1-(2-aminoethyl)-piperidine 4-(2-aminoethyl)-morpholine, respectively....

Terephthalic acid derivatives bearing amide side functional groups, viz. 2-propionamidoterephthalic (H2L1) and 2-acetamidoterephthalic (H2L2), have been structurally characterized using X-ray crystallography. While H2L1 is hydrogen bonded with DMF molecules forming a 1D network, H2L2 constructs 2D network. They used to synthesize two new isostructural mononuclear copper complexes, [Cu(L1)(H2O)4] (1) [Cu(L2)(H2O)4] (2), also In these structures the assemblies of carboxylate coordinated water...

The bis(μ-phenoxo) Fe(III)Ni(II) compound [Fe(III)(N3)2LNi(II)(H2O)(CH3CN)](ClO4) (1) and the bis(μ-phenoxo)-μ-acetate/bis(μ-phenoxo)-bis(μ-acetate) {[Fe(III)(OAc)LNi(II)(H2O)(μ-OAc)](0.6)·[Fe(III)LNi(II)(μ-OAc)2](0.4)}(ClO4)·1.1H2O (2) have been synthesized from Robson type tetraiminodiphenol macrocyclic ligand H2L, which is [2 + 2] condensation product of 4-methyl-2,6-diformylphenol 2,2'-dimethyl-1,3-diaminopropane. Single-crystal X-ray structures both compounds determined. cationic part...

A series of self-assembled lanthanide coordination polymers formulated as [La(L1)2]n·1n(DMF)H·3n(DMF) (1), [Ce(L1)2]n·1n(DMF)H·2n(DMF) (2), [Sm(L1)2]n·1n(HCONH2)H·2n(HCONH2) (3), [La(L2)(HL2)(H2O)(DMF)2]n (4) and [Ce(L2)(HL2)(H2O)(DMF)2]n (5) [H2L1: 2-acetamidoterephthalic acid H2L2: 2-benzamidoterephthalic acid] has been synthesized from the reactions H2L1 or H2L2 with different salts under hydrothermal conditions characterized by elemental analysis, IR spectroscopy, X-ray single-crystal...

Crystal structures and single molecule magnetic behaviour of two bis(μ-phenoxido)–bis(μ-acetato) {Co^IIIDy^III} complexes, derived from the hexadentate Schiff base <italic>N</italic>,<italic>N</italic>′-ethylenebis(3-ethoxy- or 3-methoxysalicylaldimine), are described.

A ferrocenium promoted method for the chemoselective oxidation of benzylic amines to imines has been developed with yields varying from 53% 93%. Use 5 mol % hexafluorophosphate as a promoter was sufficient this radical based reaction. Air bubbled into reaction mixture, which worked oxidant transformation. Most importantly, carried out in pure aqueous medium at 65 °C. 10 gram scale benzylamine successfully show practical applicability methodology.