نتایج جستجو برای: oxime

تعداد نتایج: 2545  

2009
Ignez Caracelli Antonio C. Trindade Paulo J. S. Moran Luciana Hinoue Julio Zukerman-Schpector Edward R. T. Tiekink

The title mol-ecule, C(11)H(10)N(2)O(6), has a Z conformation about the C=N bond of the oxime unit. There are significant twists from planarity throughout the mol-ecule, the most significant being between the hydroxy-imino and ester groups which are effectively orthogonal with an N-C-C-O(carbon-yl) torsion angle of 91.4 (2)°. The crystal packing features oxime-benzoyl O-H⋯O contacts that lead t...

2009
Li Xu Lei Wu

In the title compound, C(15)H(13)BrN(2)O(2), he oxime unit adopts an E conformation with respect to the O-H group. A classical intra-molecular O-H⋯N hydrogen bond results in the formation of a six-membered ring. The crystal structure is stabilized by inter-molecular O-H⋯N hydrogen bonds between the hydr-oxy groups and the oxime N atoms. In addition, the crystal structure also features short int...

2009
Lan-Qin Chai Jian Yao Shang-Sheng Gong

In the title centrosymmetric mononuclear copper(II) complex, [Cu(C(8)H(7)BrNO(2))(2)], the Cu(II) atom, lying on an inversion centre, is four-coordinated in a trans-CuN(2)O(2) square-planar geometry by two phenolate O atoms and two oxime N atoms from two symmetry-related N,O-bidentate oxime-type ligands. Inter-molecular C-H⋯O hydrogen bonds link neighbouring mol-ecules into a one-dimensional su...

Journal: :Chemical communications 2011
Zhichao Shan Hong Wang Xiangju Meng Siyu Liu Liang Wang Chunyu Wang Fei Li James P Lewis Feng-Shou Xiao

TS-1 crystals with controllable b-oriented length (sheet-like morphology, TS-1-S; chain-like morphology, TS-1-C) have been rationally synthesized from addition of organic additives (urea and fluorinated surfactant of FC-4) in the starting titanosilicate gels, and catalytic and adsorptive measurements show that TS-1-S samples are very active in Beckmann rearrangement of cyclohexanone oxime, wher...

2015
Takuya Yamaguchi Yasuhisa Asano

Bacillus sp. OxB-1 has been characterized as a strain that produces a new enzyme, aldoxime dehydratase, which catalyzes the dehydration of aldoxime to form nitrile. Here, its complete genome sequence (3,594,618 bp, with a GC content of 47.85%), comprising a circular chromosome, is announced.

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2001
T Grüning W G Franke

Journal: :nanochemistry research 1999
mostafa karimkoshteh marziyeh bagheri behzad zeynizadeha

various aldoximes and ketoximes synthesis of corresponding aldehydes and ketones in the presence of sio2@feso4 nano composite as recoverable nano catalyst and nh2oh·hcl. the sio2@feso4 nano composite system was carried out between 10 to 15 min in oil bath (70-80 °c) under solvent-free condition in excellent yields in addition this protocol can be used for industrial scales. this method offers s...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2002
ali reza rezvani hassan hadadzadeh

six new complexes of the type trans-[lco((do)(doh)pn)l'] where (do)(doh)pn= n2, n2'-propanediolbis (2,3-butanedione 2-imine 3-oxime), l-cl¯ and l'=mono-anaion of phenylcyanamide (pcyd), 2,5-dichlorophenylcyanamide (2,5-cl2 pcyd), 2,4-dimethyl pehylcyanamide (2,4-me2 pcyd) and l=l'=pcyd, 2,5-cl2 pcyd, 2,4-me2 pcyd, have been synthesized and characterized by elemental analysis, spectroscopy and c...

Some oxime ether derivatives of α-ionone (4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one) have been synthesized. Reaction of 4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-ketoxime with various chloro and fluoro aromatic and hetero aromatic compounds gave the corresponding oxime ether derivatives via aromatic nucleophilic substitution (SNAr). The structures of these co...

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