Results 51 to 60 of about 30,747 (247)

Otto Billeter or How the Oldest [3,3]-Sigmatropic Rearrangement went to Neuchâtel, Part 2 Otto Billeter oder wie die älteste [3,3]-sigmatrope Umlagerung nach Neuenburg kam: Teil 2

CHIMIA, 2000
The historical survey of the uncatalyzed, thermal rearrangement of thiocyanates into isothiocyanates is continued, starting with a review of Otto Billeter's scientific and social career in Neuchâtel. A specific look is taken at 1925 where Ludwig
Hans-Jürgen Hansen
doaj   +2 more sources

Ultrasound-promoted synthesis of novel fused heterocycles by criss-cross cycloaddition

Journal of Saudi Chemical Society, 2016
This work reports a novel and highly efficient methodology for the synthesis of perhydrotriazolotriazoledithions from two successive 1,3-dipolar cycloaddition under ultrasound irradiation.
Javad Safari, Soheila Gandomi-Ravandi, Marzieh Ghotbinejad   +2 more
doaj   +1 more source

Geminale Difunktionalisierung von Ketonen durch C–S Bindungs‐insertion photogenerierter Donor–Donor Diazoverbindungen

Angewandte Chemie, EarlyView.
Die geminale Difunktionalisierung leicht verfügbarer Bausteine ermöglicht einen schnellen Zugang zu molekularer Komplexität. Diese Arbeit stellt eine Strategie vor, um zwei unterschiedliche funktionelle Gruppen an einem Carbonylkohlenstoff zu installieren, indem dieser in eine Donor–Donor‐Diazo‐Verbindung überführt wird. Die Methode ist sowohl im Batch‐
Vincent George, Aryaman Pattanaik, Daniel Maddox, Lukas M. Sigmund, Giovanna Mejia, Sara Pahlén, Simon O. Angerer, Maria Schmoll, Lisa Marie Schneider, Nidhal Selmi, Mikhail Kabeshov, Giulia Bergonzini, Julia Rehbein, Burkhard König   +13 more
wiley   +1 more source

Al-MCM-41: An Efficient and Recyclable Heterogeneous Catalyst for the Synthesis of β-Hydroxy Thiocyanates in Water

Journal of Chemistry, 2013
An efficient and green procedure has been developed for the synthesis of β-hydroxy thiocyanate by the regioselective ring opening of epoxides with NH4SCN.
Soheil Sayyahi, Saied Menati, Mehri Karamipour   +2 more
doaj   +1 more source

[3,3]-Sigmatropic Rearrangements of Fluorinated Allyl (Thio)cyanates – A Tool for the Synthesis of Fluorinated (Thio)ureas

CHIMIA, 2014
The first (thio)cyanate to iso(thio)cyanate rearrangements based on 2-fluoroallylic alcohols are presented. Long-chain 2-fluoroallylic alcohols were converted to corresponding N-unsubstituted carbamates by treatment with trichloroacetyl ...
Daniel C. Ramb, Lisa Kost, Günter Haufe
doaj   +1 more source

Label free colorimetric sensing of thiocyanate based on inducing aggregation of Tween 20-stabilized gold nanoparticles [PDF]

, 2012
Based on inducing the aggregation of gold nanoparticles (AuNPs), a simple colorimetric method with high sensitivity and selectivity was developed for the sensing of thiocyanate (SCN-) in aqueous solutions.
Chen, Lingxin, Chen, Zhaopeng, Pan, Dawei, Qu, Chengli, Zhang, Jun, Zhang, Zhiyang   +5 more
core   +1 more source

An Efficient and Eco-Friendly Procedure for Electrophilic Thiocyanation of Anilines and 1-(Substituted benzylidene)-2-phenyl Hydrazines

Chemistry
Thiocyanates form an important class of organic compounds commonly found in natural products that exhibit excellent antimicrobial activity. The electrophilic thiocyanation is one of the most effective methods of introducing a -SCN functional group to the
A. M. M. Mallikarjunaswamy, Gouthami Kuruvalli, Khajamohiddin Syed, Vaddi Damodara Reddy, Vipin A. Nair   +4 more
doaj   +1 more source

The structure and dipole moment of isothiocyanic acid [PDF]

, 1949
"June 3, 1949."Bibliography: p. 11.Office of Naval Research Contract N5ori-76 Joint Service Contract W-36-039sc-32037C. I. Beard, B.

core  

Tandem hydrothiocyanation/cyclization of CF3-iminopropargyl alcohols with NaSCN in the presence of AcOH

Beilstein Journal of Organic Chemistry
The synthesis of trifluoromethylated isothiazolium thiocyanates and 4-thiocyanato-2,5-dihydrofurans is presented through hydrothiocyanation/cyclization of CF3-iminopropargyl alcohols using NaSCN in AcOH/MeCN.
Ruslan S. Shulgin, Ol’ga G. Volostnykh, Anton V. Stepanov, Igor’ A. Ushakov, Alexander V. Vashchenko, Olesya A. Shemyakina   +5 more
doaj   +1 more source

Biological Degradation of Cyanide, Thiocyanate, and Phenolic Compounds in Wastewater [PDF]

Kemija u Industriji
Wastewater from various industries, such as coking, mining, pharmaceutical, petroleum, etc., often contains high concentrations of cyanides, thiocyanates, and phenolic compounds, individually or in combination, making them serious sources of pollution ...
Ana Tutić, Marija Vuković-Domanovac, Dajana Kučić-Grgić, Martina Miloloža   +3 more
doaj   +1 more source