نتایج جستجو برای: salts

تعداد نتایج: 27779  

Journal: :Chemical communications 2014
Shiqing Li Fan Yang Taiyong Lv Jingbo Lan Ge Gao Jingsong You

Imidazolium salts were conveniently prepared by direct aryl quaternization using arylboronic acids. This process features the tolerance of a broad range of functional groups and excellent chemoselectivity, and is especially effective for the synthesis of unsymmetrical imidazolium salts.

Journal: :The Journal of biological chemistry 1948
M J HORN D B JONES A E BLUM

Glucose. ...................... Sodium acetate (anhydrous). ... Salts A K~HPOI ..................... KHzPOr .................... Salts B MgSOa.7HzO. ................ MnS01.4H20. ............... NaCl ........................ FeSO,.7HzO .................. Adenine ....................... Guanine ....................... Uracil ......................... Thiamine chloride. ............. Pyridoxamine ...

Journal: :Chemical communications 2016
A F Fearnley J An M Jackson P Lindovska R M Denton

We report a synthesis method for the construction of quaternary aryl phoshonium salts at ambient temperature. The regiospecific reaction involves the coupling of phosphines with aryl radicals derived from diaryliodonium salts under photoredox conditions.

Journal: :Chemical communications 2012
Michael Tsimerman Debasis Mallik Tsukasa Matsuo Takashi Otani Kohei Tamao Michael G Organ

A new protocol was developed for the synthesis of sterically demanding imidazolinium salts. This procedure was adopted for the synthesis of seven NHC salts, including ones that were demonstrated to be inaccessible using the conventional orthoformate ester type cyclization method.

Journal: :Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2013
Patrick Belton Tenzing Sharngoe F Michael Maguire Mark Polhemus

The street drug "bath salts" are psychoactive mixtures of cathinone derivatives. We report 3 cases of disseminated Staphylococcus aureus infection with cardiac involvement (2 endocarditis and 1 pericarditis), secondary to intravenous bath salts use.

Journal: :Chemical communications 2011
Hyun Chul Cho Han Sol Lee Jiseul Chun Sang Moon Lee Hae Jin Kim Seung Uk Son

Tubular microporous organic networks bearing imidazolium salts (T-IM) were prepared by Sonogashira coupling of tetrakis(4-ethynylphenyl)methane and diiodoimidazolium salts, which showed promising catalytic activities in heterogeneous conversion of CO(2) into cyclic carbonates.

Journal: :Chemical communications 2012
Xiaoxi Zhao Liyuan Liang Douglas W Stephan

Reactions of alkynylborate salts, easily derived from reaction of frustrated Lewis pairs with terminal alkynes, with diazonium salts to induce 1,1-carboboration affording a facile and efficient route to substituted electrophilic vinyl boranes.

Journal: :The Journal of General Physiology 2003
W. J. V. Osterhout

Certain alkaloids which decrease permeability are able to antagonize NaCl. In this respect they resemble salts which decrease permeability, for it has been shown that such salts antagonize NaCl.

2004
Haruki SASHIDA Kazuo OHYANAGI

construction of various heterocyclic rings. The reactions of pyrylium or thiopyrylium salts, six-membered cationic heteroaromatics containing an oxygen or sulfur atom, with nitrogen-containing nucleophiles to afford a variety of nitrogen-containing heterocyclic compounds provide one of the most effective examples of the ring transformation. Sixmembered heterocycles such as pyridines, quinolines...

Journal: :Biochemical Society transactions 1997
W A Morgan B Kaler P H Bach

The determination of serum and urinary enzymes levels is widely used to assess both liver and kidney damage. However, during obstructive liver disease there is a concurrent elevation in the concentrations of serum and urinary hydrophobic bile salts, which have been reported to alter the activity of a number of enzymes making the accurate assessment of enzymic activity difficult [l]. Bile salts ...

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