A greener and expeditious method for the side chain bromination of acetophenone using <italic>in situ</italic> generated bromonium ions from NH₄Br in a H₂O:CH₃CN medium at ambient temperature has been developed an undivided cell equipped with Pt/Pt electrode.

Halogenations are the most important transformations in organic synthesis and can be carried out by several methods. In particular, electrochemical reactions serve as an excellent method for generation of reactive species under mild conditions which do not require large quantities toxic or corrosive reagents. This review outlines significant developments area methods over conventional aryl halides, particularly recent two decades.

The α-bromination of carbonyl compounds is one the most important transformations and also precursors in synthetic organic chemistry. Particularly, side chain monobromination has been a challenging task, because during reaction small amount disubstituted or ring brominated products as an impurity always accompanied with monosubstituted product mixture. In recent years substantial advances have made for synthesis aromatic high selectivity. this review, we summarized various methods α-bromo compounds.

In the title compound, C16H15NOS, thia­zolidine ring, which is essentially planar [maximum deviation = 0.071 (2) Å], makes dihedral angles of 88.01 (8) and 87.21 (8)° with terminal phenyl rings. The angle between rings 49.45 (5)°. crystal, mol­ecules are linked by a weak inter­molecular C—H⋯O hydrogen bond, forming supra­molecular chain along b axis. Furthermore, crystal packing stabilized C—H⋯π inter­action.

V. Sathyaa, R. Jagatheesanb* , D. Gopia & S. Sambathkumarba Department of Chemistry, Periyar University, Salem, Tamil Nadu, Indiab Vivekanandha College Arts and Sciences for Women (Autonomous), Namakkal, India

AbstractBecause of its solubility, availability and inexpensive sodium salts is a perspective electrolyte substance or mediator to be used in electroorganic synthesis. The choice critical for achieving optimal yields selectivity synthetic organic electrochemistry. imparts significant influence on the kinetics thermodynamics electron transfer shows vital role transformation. In this review, we aim emphasize recent instances as an electrochemical reactions.Keywords: Alkyl aromatic...

A greener and inexpensive electrochemical method has been developed for the oxidation of benzyl alcohols by homogeneous electrolysis. The reaction was carried out in an undivided cell equipped with carbon stainless steel electrodes at room temperature. solution made up acetonitrile/water containing substrate ammonium bromide a catalytic amount H2SO4 as supporting electrolyte. condition optimized various experimental parameters evaluated substituted to result excellent yield aldehydes (>83%).

The asymmetric unit of the title compound, 2C(10)H(11)N(5)O·C(6)H(10)O(4), consists a 2,4-diamino-6-(4-meth-oxy-phen-yl)-1,3,5-triazine mol-ecule and one-half adipic acid which lies about an inversion center. triazine ring makes dihedral angle 12.89 (4)° with adjacent benzene ring. In crystal, components are linked by N-H⋯O O-H⋯N hydrogen bonds, thus generating centrosymmetric 2 + 1 mol-ecules R(2) (2)(8) motifs. connected to each other N-H⋯N forming motif supra-molecular ribbon along c...

The asymmetric unit of the title compound, C(19)H(17)N(3)O, contains two independent mol-ecules. In one mol-ecule, essentially planar triazole ring [maximum deviation = 0.003 (2) Å] forms dihedral angles 5.57 (12) and 87.51 (12)° with phenyl rings, while in other mol-ecule 0.001 these are 1.55 (10) 82.73 (11)°. between rings mol-ecules 87.77 (13) 81.22 crystal, connected via a weak C-H⋯N hydrogen bond, forming dimers. Further stabilization is provided by C-H⋯π inter-actions.

In the title compound, C14H13NO2S, thia­zolidine ring is approximately planar with a maximum deviation of 0.112 (1) Å. The furan disordered over two orientations, an occupancy ratio 0.901 (5):0.099 (5). central makes dihedral angles 85.43 (8), 87.50 (11) and 87.9 (9)° phenyl major minor components ring, respectively. crystal, mol­ecules are connected by weak inter­molecular C—H⋯O hydrogen bonds, forming supra­molecular chains parallel to b axis.

Trace-level analysis of genotoxic sulfonate ester impurities in teneligliptin by GC-MSMurugan Maniavannan, Palaniappan Ilayaraja, Paramasivam Parthiban

In the title compound, C(10)H(11)N(5)O, triazine ring forms a dihedral angle of 10.37 (4)° with benzene ring. crystal, adjacent mol-ecules are linked by pair N-H⋯N hydrogen bonds, forming an inversion dimer R(2) (2)(8) motif. The dimers further connected via N-H⋯O and resulting in three-dimensional network.

Background/Objectives: The intermittency in the renewable sources is a great menace to quality of power delivered and lifetime components. In process straightening up short coming storage devices come handy. Methods/Statistical Analysis: Batteries fuel cells are commonly used for Photovoltaic system. Recently ultra-capacitors introduced combination with as it has better density compared batteries cells. Also, can provide higher energy period time. This paper deals comparison different...

The asymmetric unit of the title compound, C(19)H(16)FN(3)O, contains two crystallographically independent mol-ecules. triazole rings in both mol-ecules are essentially planar with maximum deviations 0.002 (1) and 0.001 Å. dihedral angles between benzene fluorophenyl 79.36 (9) 89.40 (10)° molecules. In crystal, linked by C-H⋯N hydrogen bonds, forming dimers. Furthermore, crystal structure is stabilized C-H⋯π inter-actions.