cas 1836-77-7, 4-Cyanotetrahydropyran | Articles data ｜lookchem

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1836-77-7

Articles about 1836-77-7Total 4 be found

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CsF/clinoptilolite: An efficient solid base in SNAr and copper-catalyzed Ullmann reactions
CsF/clinoptilolite was found to be an efficient solid base catalyst for both SNAr and Ullmann ether reactions. A general and efficient one-step procedure was developed for the synthesis of biaryl ethers via direct coupling of electron-deficient aryl halides to phenols using CsF/clinoptilolite. The protocol was also applied to electron-rich aryl halides by addition of a catalytic amount of copper oxide nanoparticles. Both SNAr and Ullmann reactions were rapid and provided good to excellent yields.
Keipour, Hoda,Hosseini, Abolfazl,Afsari, Amir,Oladee, Razieh,Khalilzadeh, Mohammad A.,Ollevier, Thierry
p. 95 - 104
(2016/01/16)

Potassium fluoride supported on natural nanoporous zeolite: A new solid base for the synthesis of diaryl ethers
An efficient and inexpensive synthesis of diaryl ethers has been developed. The process involves the nucleophilic aromatic substitution of electron-deficient aryl halides and phenols and is mediated by potassium fluoride/Clinoptilolite (KF/CP) in dimethyl sulfoxide (DMSO). The approach affords good to excellent yields of the arylated products without the need for additional cation capture. The solid base is also efficient in the Ullmann ether synthesis. A new, inexpensive solid base for the synthesis of diaryl ethers has been developed. Clinoptilolite, a natural zeolite with a high tendency for cation capture, combined with potassium fluoride, provides an efficientsolid base for the deprotonation of phenols in nucleophilic reactions. The same solid base acts as a reliable base for the copper-catalyzed synthesis of diaryl ethers. Copyright
Khalilzadeh, Mohammad A.,Hosseini, Abolfazl,Pilevar, Afsaneh
experimental part
p. 1587 - 1592
(2011/04/22)

Halopyridyl triazolinone herbicides and herbicidal use thereof
Disclosed are herbicidal halopyridyl triazolinones, herbicidal compositions comprising the halopyridyl triazolinones, and herbicidal use of the compounds and compositions. Such compounds and compositions are useful as both preemergence and postemergence herbicides in a variety of crops.
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(2008/06/13)

Process of improving activity of herbicides and fertilizers using N-(2-hydroxyethyl)-acetamide or -propanamide
The invention is related to the use of certain water-soluble compounds known as such and having the Formula for the modulation of membrane dependent metabolism processes within living cells, in particular with relation to transport phenomena and cell procedures which are induced or influenced by active agents supplied from outside the cell, products containing these substances for the above described uses and processes using these products.
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(2008/06/13)

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Chemical Properties

Appearance/Colour :yellow crystalline powder
Melting Point: 105-106°
Boiling Point: 370.4 °C at 760 mmHg
Flash Point:177.8 °C
Density: 1.533 g/cm³
Storage Temp.:0-6°C
Refractive Index: 1.6200 (estimate)
BRN: 1890443
PSA: 55.05000
LogP: 5.87050

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