نتایج جستجو برای: benzyl

تعداد نتایج: 8220  

Journal: :Chemical communications 2014
Meng-Ting Huang Hsin-Yi Wu Rong-Jie Chein

This work describes catalytic and asymmetric aziridinations (15 examples, 95-98% ee) of benzyl bromide and imines via the imino Corey-Chaykovsky reaction using (thiolan-2-yl)diarylmethanol benzyl ether as an organocatalyst. The catalyst and analogues thereof were prepared through an expeditious and efficient synthetic route featuring a double nucleophilic substitution and Shi epoxidation as key...

2015
Ionuţ Ledeţi Anda Alexa Vasile Bercean Gabriela Vlase Titus Vlase Lenuţa-Maria Şuta Adriana Fuliaş

This paper reports on the synthesis and characterization of two Schiff bases bearing 1,2,4-triazolic moieties, namely 4H-4-(2-hydroxy-benzylidene-amino)-5-benzyl-3-mercapto-1,2,4-triazole and 4H-4-(4-nitro-benzylidene-amino)-5-benzyl-3-mercapto-1,2,4-triazole using thin layer chromatography, melting interval, elemental analysis, spectroscopy and thermal stability studies.

2008
Hamid Khaledi Hapipah Mohd Ali Seik Weng Ng

In the title compound, C(18)H(17)N(3)S(2), the dihedral angle between the planes of the aromatic ring systems is 83.63 (16)°. In the crystal structure, inversion dimers occur, linked by pairs of N-H⋯S hydrogen bonds.

2011
Manavendra K. Singh Alka Agarwal Satish K. Awasthi

The title compound, C(14)H(11)ClFNO(2), the phenyl ring (A), the chloro-fluoro-phenyl ring (B) and the central ketone O/C/O group (C) are not coplanar, with dihedral angles B/C = 31.6 (2), A/B = 21.3 (2) and A/C = 50.1 (2)°. The crystal packing is stabilized by N-H⋯O and C-H⋯O inter-actions.

2012
Guo-Xia Tan Chang-Fa Zhang

The Sn(IV) atom in the title compound, [Sn(C(6)H(5))(3)Cl(C(13)H(12)OS)], is situated within a distorted C(3)ClO trigonal-bipyramidal coordination geometry with a mean Sn-C distance of 2.136 (6) Å and with an Sn-O distance of 2.393 (4) Å. The Sn(IV) atom lies 0.171 (3) Å out of the equatorial C(3) plane in the direction of the axially bound Cl atom.

2015
Graeme J. Gainsford Ralf Schwörer Peter C. Tyler Olga V. Zubkova

The three title compounds form part of a set of important precursor dissacharides which lead to novel therapeutics, in particular for Alzheimer's disease. All three crystallize as poorly diffracting crystals with one independent mol-ecule in the asymmetric unit. Two of them are isostructural: 4-meth-oxy-phenyl 4-O-[6-O-acetyl-2-azido-3-O-benzyl-2-de-oxy-4-O-(9-fluor-en-yl-methyl-oxycarbon-yl)-α...

Journal: :Chemical communications 2011
Renhong Li Hisayoshi Kobayashi Junfang Guo Jie Fan

The surface structure of mesoporous TiO(2) is reconstructed via a visible-light-driven reaction with benzyl alcohol molecules at mild, anaerobic conditions, which substantially extends its visible-light absorption and photocatalytic activities.

Journal: :Dalton transactions 2008
Robert Beck Markus Frey Sebnem Camadanli Hans-Friedrich Klein

C-H activation through the coordination of a benzyl sulfide anchoring group with a C-S bond cleavage at a Co(v) center constitutes a regiospecific access to four- and five-membered metallacycles under mild conditions.

Journal: :Dalton transactions 2011
Wenyi Li Wenting Wu Yaorong Wang Yingming Yao Yong Zhang Qi Shen

Two dinuclear aluminum alkyl complexes supported by a piperazidine-bridged bis(phenolato) group were prepared, and both complexes exhibited extremely high activity for the ring-opening polymerization of ε-caprolactone. In the presence of benzyl alcohol (BnOH), the polymerization accelerated dramatically.

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