2-(2,4,6-Tri-tert-butylphenyl)-1-arsaethin - die erste Verbindung mit Arsen-Kohlenstoff-Dreifachbindung

Märkl, Gottfried; Sejpka, Hans

doi:10.1002/ange.19860980332

Cited by 34 publications

(6 citation statements)

References 8 publications

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“…Twenty‐five years after the discovery of HCP, the first arsaalkyne, Mes*CAs (Mes*=2,4,6‐tri‐ tert ‐butylphenyl) was reported 12. The thermal stability of Mes*CAs is mainly due to the bulky Mes* group.…”

Section: Nmr Spectroscopy Data Of [(Cf3)3bcx]− (X=n P As) and Relatmentioning

confidence: 99%

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Detection of spatial disease clusters with LISA functions

Moraga

Montes

2011

Statistics in Medicine

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Detection of disease clusters is an important tool in epidemiology that can help to identify risk factors associated with the disease and in understanding its etiology. In this article we propose a method for the detection of spatial clusters where the locations of a set of cases and a set of controls are available. The method is based on local indicators of spatial association functions (LISA functions), particularly on the development of a local version of the product density, which is a second-order characteristic of spatial point processes. The behavior of the method is evaluated and compared with Kulldorff's spatial scan statistic by means of a simulation study. It is shown that the LISA method yields high sensitivity and specificity when it is used to detect simulated clusters of different sizes and shapes. It also performs better than the spatial scan statistic when they are used to detect clusters of irregular shape; however, it presents relatively high type I error in situations where the number of cases is high. Both methods are applied for detecting spatial clusters of kidney disease in the city of Valencia, Spain, in the year 2008.

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Section: Nmr Spectroscopy Data Of [(Cf3)3bcx]− (X=n P As) and Relatmentioning

confidence: 99%

“…This synthetic method has been employed for the synthesis of Mes*CAs,12 and is similar to methods used for the synthesis of kinetically stable phosphaalkynes 2. 7 The reagent K[X(SiMe 3 ) 2 ] is formed in situ by treating X(SiMe 3 ) 3 (X=P, As) with KO t Bu.…”

Section: Nmr Spectroscopy Data Of [(Cf3)3bcx]− (X=n P As) and Relatmentioning

confidence: 99%

Detection of spatial disease clusters with LISA functions

Moraga

Montes

2011

Statistics in Medicine

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“…Almost three decades ago Becker et al succeeded in the synthesis of the first stable phosphaalkyne, tert ‐butylphosphaalkyne 1, which through an improved synthesis 2 gave a general approach to this class of P≡C triply bound compounds on a preparative scale, and many representatives have since appeared 3. In contrast, arsaalkynes are extremely rare, with the first stable compounds, Mes*C≡As, reported in 1986 4. A recent development was reported by the synthesis of the borate derivatives [(F 3 C) 3 BC≡P] – and [(F 3 C) 3 BC≡As] – representing phosphaethynyl and arsaethynyl systems 5.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Reactivity of Low‐Valent Group 14 Element Compounds

Johnson

Almstätter

Dielmann

et al. 2010

Zeitschrift anorg allge chemie

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“…Erst 25 Jahre nach der Entdeckung von HCP wurde über das erste Arsaalkin, Mes*CAs,12 berichtet (Mes*=2,4,6‐Tri‐ tert ‐butylphenyl). Die thermische Stabilität dieser Verbindung ist hauptsächlich auf die sterisch anspruchsvolle Mes*‐Gruppe zurückzuführen.…”

Section: Nmr‐spektroskopische Daten Von [(Cf3)3bcx]− (X=n P As) Undunclassified

“…Diese Methode wurde bereits bei der Synthese von Mes*CAs angewendet,12 und auch stabile Phosphaalkine wurden auf ähnlichem Wege hergestellt 2. 7 Das Reagens K[X(SiMe 3 ) 2 ] entsteht in situ aus X(SiMe 3 ) 3 (X=P, As) und KO t Bu.…”

Section: Nmr‐spektroskopische Daten Von [(Cf3)3bcx]− (X=n P As) Undunclassified

Simultaneous determination of five tetracycline and macrolide antibiotics in feeds using HPCE

Tong¹,

Rao²,

Zhu³

et al. 2009

J of Separation Science

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This work demonstrates the potential of HPCE in the analysis of antibiotics in a complex matrix such as feedstuffs. Using 20 mM citric acid-40 mM Na 2 HPO 4 buffer (pH 2.65), the five antibiotics, tetracycline, oxytetracycline, doxycycline, tilmicosin, and tylosin were successfully separated at 30 kV in a 64.5 cm Â 75 mm id capillary. Good repeatability, stability, and reliability of the method were supported by o10% CV with mean recoveries of 470%, and the limit of detection of the five analytes was 0.5-1 mg/kg. It was for the first time that a capillary electrophoretic method was employed to simultaneously detect five tetracycline and macrolide antibiotics in animal feeds.

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2-(2,4,6-Tri-tert-butylphenyl)-1-arsaethin - die erste Verbindung mit Arsen-Kohlenstoff-Dreifachbindung

Cited by 34 publications

References 8 publications

Detection of spatial disease clusters with LISA functions

Detection of spatial disease clusters with LISA functions

Synthesis and Reactivity of Low‐Valent Group 14 Element Compounds

Simultaneous determination of five tetracycline and macrolide antibiotics in feeds using HPCE

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