نتایج جستجو برای: benzocaine

تعداد نتایج: 896  

2013
Gareth D. Readman Stewart F. Owen Joanna C. Murrell Toby G. Knowles

This study addresses a fundamental question in fish welfare: are the anaesthetics used for fish aversive? Despite years of routine general use of many agents, within both scientific research and aquaculture, there is a paucity of information regarding their tolerance and associated behavioural responses by fish. This study examined nine of the most commonly used fish anaesthetic agents, and per...

Journal: :Acta crystallographica. Section C, Crystal structure communications 2002
John F Gallagher Clare M Coleman Donal F O'Shea

The orange title compound, C(19)H(17)N(3)O(4)S, can be synthesized either via microwave-mediated combinatorial chemistry strategies or conventional synthetic procedures. The phenyl and meta-nitrophenyl C(6) rings are essentially coplanar with the central imidazolyl ring, with interplanar angles of 0.87 (5) and 0.97 (4), respectively, resulting in optimum conjugation (SCH(2) moiety included); la...

2009
Hong Dae Choi Pil Ja Seo Byeng Wha Son Uk Lee

In the title compound, C(13)H(12)BrClO(4)S, the O atom and the methyl group of the methyl-sulfinyl substituent lie on opposite sides of the plane of the benzofuran fragment. There is a mean deviation of 0.016 (4) Å from the least-squares plane defined by the nine constituent benzofuran atoms. The crystal structure is stabilized by aromatic π-π inter-actions between the benzene rings of neighbou...

2002
Georg Götz

This article adds technology choice to a free-entry Cournot model with linear demand and constant marginal costs. Firms can choose from a discrete set of technologies. This simple framework yields non-existence of equilibrium, existence of multiple equilibria and equilibria in which ex-ante identical ̄rms choose di®erent technologies as possible outcomes. I provide a full characterization of th...

2008
Pumsak Ruanwas Thawanrat Kobkeatthawin Suchada Chantrapromma Hoong-Kun Fun Chatchanok Karalai

In the title compound, C(16)H(14)NS(+)·I(-), the cation has an E configuration about the C=C double bond of the ethyl-ene unit. The dihedral angle between the thio-phene ring and the quinolinium ring system is 11.67 (11)°. A weak C-H⋯S intra-molecular inter-action involving the thio-phene ring generates an S(5) ring motif. In the crystal structure, the iodide ion, located between the cations ar...

2011
Yeong Keng Yoon Mohamed Ashraf Ali Tan Soo Choon Madhukar Hemamalini Hoong-Kun Fun

In the title compound, C(23)H(24)F(3)N(3)O(3), the morpholine ring adopts a chair conformation. The benzimidazole ring is approximately planar, with a maximum deviation of 0.028 (1) Å for one of the unsubstituted C atoms. The benzimidazole ring makes dihedral angles of 35.66 (4) and 75.45 (5)° with the attached phenyl and morpholine rings, respectively. In the crystal structure, adjacent mol-ec...

2004
Lance Brown

Considerable variation exists among the recommendations given by PCCs in the United States and Canada regarding the management of pediatric benzocaine exposures. The general consensus among our survey respondents was that: 1) the need for observation or any interventions is related to the estimated ingested dose, 2) patients evaluated in a healthcare facility should receive some kind of gastroi...

2012
Hoong-Kun Fun Suhana Arshad S. Samshuddin B. Narayana B. K. Sarojini

In the title compound, C(28)H(24)F(2)N(2)O(6)S, the whole mol-ecule is disordered over two sites with refined occupancies of 0.778 (3) and 0.222 (3). The central benzene ring makes dihedral angles of 56.0 (4), 34.5 (4) and 70.9 (4)°, respectively, with the two terminal benzene rings and the 1,3,4-oxadiazole ring in the major component of the disordered mol-ecule. The corresponding angles in the...

Journal: :Organic & biomolecular chemistry 2015
Marcus Baumann Antonio M Rodriguez Garcia Ian R Baxendale

The efficient flow synthesis of important heterocyclic building blocks based on the 1,2,4-triazole and pyrrolo[1,2-c]pyrimidine scaffold has been achieved. Crucially, a telescoped continuous flow process was developed based on the reaction of N-formylglycine with triphosgene to deliver a stream of ethyl isocyanoacetate in situ, which subsequently yielded the desired heterocyclic entities in a t...

Journal: :Organic & biomolecular chemistry 2009
Kuang-Po Chen Hen-Qun Lee Yu-Chih Cheng Che-Ping Chuang

A manganese(III)-mediated reaction between 2-benzoyl-1,4-benzoquinones and 1,3-dicarbonyl compounds that produces benzo[c]furan-4,7-diones and anthracene-1,4-diones with high chemoselectivity is described. With ethyl butyrylacetate, by changing the solvent, benzo[c]furan-4,7-diones and anthracene-1,4-diones can be generated in high chemoselectivities. With ethyl benzoylacetate, N ,N-dimethyl ac...

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