105797-59-9Relevant articles and documents
Ultrasound-assisted synthesis of functionalized arylacetylenes
Stefani, Hélio A.,Cella, Rodrigo,D?rr, Felipe A.,De Pereira, Claudio M.P.,Gomes, Fábio P.,Zeni, Gilson
, p. 2001 - 2003 (2005)
A convenient and inexpensive ultrasound-assisted preparation of functionalized arylacetylenes using metallic lithium is reported.
Synthesis of alkynyltellurides mediated by K3PO4 and DMSO
Do Sacramento, Manoela,Menezes, Larissa,Goldani, Bruna,Perin, Gelson,Silva, Marcio S.,Barcellos, Thiago,Alves, Diego
supporting information, p. 11091 - 11098 (2019/07/31)
In the present work, a simple method for the synthesis of alkynyltellurides is described by the reactions of terminal alkynes with diorganyl ditellurides in the presence of a catalytic amount of K3PO4. In both substrates, it was possible to vary the aryl and alkyl groups, obtaining the products of interest in short reaction times and in yields ranging from 30 to 93%. This methodology, different from those already reported in the literature, has the advantage of using a catalytic amount of a weak base and no use of metallic catalysts.
Magnetite (Fe3O4) nanoparticles: An efficient and recoverable catalyst for the synthesis of alkynyl chalcogenides (selenides and tellurides) from terminal acetylenes and diorganyl dichalcogenides
Godoi, Marcelo,Liz, Daiane G.,Ricardo, Eduardo W.,Rocha, Manuela S.T.,Azeredo, Juliano B.,Braga, Antonio L.
, p. 3349 - 3354 (2014/05/06)
We present herein a new and efficient methodology for the synthesis of alkynyl chalcogenides from terminal acetylenes and diorganyl dichalcogenides, catalyzed by Fe3O4 nanoparticles. This new approach provided the desired products in good to excellent yields. Moreover, the catalyst was easily recoverable using an external magnet and reused for further experiments without loss of catalytic activity.
Synthesis of 5-organotellanyl-1H-1,2,3-triazoles: Functionalization of the 5-position scaffold by the Sonogashira cross-coupling reaction
Stefani, Helio A.,Vasconcelos, Stanley N. S.,Manarin, Flavia,Leal, Daiana M.,Souza, Frederico B.,Madureira, Lucas Sousa,Zukerman-Schpector, Julio,Eberlin, Marcos N.,Godoi, Marla N.,De Souza Galaverna, Renan
supporting information, p. 3780 - 3785 (2013/07/19)
An efficient synthesis of 5-organotellanyl-1H-1,2,3-triazole compounds was accomplished through [3+2] cycloaddition reaction of organic azides and (organotellanyl)alkynes. Additionally, 5-organotellanyl-1H-1,2,3-triazoles were readily functionalized at th
Functionalization of 5-telluro-1,2,3-triazoles: Te/Li exchange and Suzuki-Miyaura cross-coupling reaction
Stefani, Hélio A.,Silva, Nathália C.S.,Vasconcelos, Stanley N.S.,Manarin, Flávia,Souza, Frederico B.
supporting information, p. 2809 - 2812 (2013/06/05)
This Letter describes the functionalization of 5-telluro-1,2,3-triazoles via the Te/Li exchange or Suzuki-Miyaura cross-coupling reaction to obtain moderate to good yields of the corresponding products.
An efficient synthesis of alkynyl selenides and tellurides from terminal acetylenes and diorganyl diselenides or ditellurides catalyzed by recyclable copper oxide nanopowder
Godoi, Marcelo,Ricardo, Eduardo W.,Frizon, Tiago E.,Rocha, Manuela S. T.,Braga, Antonio Luiz,Singh, Devender,Paixao, Marcio W.
, p. 10426 - 10430,5 (2012/12/12)
Herein, we report an efficient method for the synthesis of alkynyl selenides and tellurides from terminal alkynes and diorganyl diselenides or ditellurides using CuO nanopowder as a recyclable catalyst. This new methodology furnished the desired products in good to excellent yields. Furthermore, the catalyst was easily recovered and reused for further catalytic reactions without loss of activity.
Total control on the synthesis of regio and stereoisomers of vinylic tellurides.
Dabdoub,Cassol
, p. 12971 - 12982 (2007/10/02)
Methodologies for the total control on the synthesis of E, Z or 1,1-dissubstituted vinylic tellurides are described. Tellurobutadienes bearing the butyltellurium moiety at carbon 2 or at carbon 1 with E or Z configuration at the tellurium containing doubl
SYNTHESIS OF ACETYLENIC TELLURIDES BY THE IODOMETHANE-INDUCED REACTION OF DIALKYL DITELLURIDES WITH PHENYLACETYLENE
Potapov, Vladimir A.,Amosova, Svetlana V.,Khangurov, Aleksandr V.,Petrov, Pavel A.
, p. 273 - 276 (2007/10/02)
Interaction of dialkyl ditellurides with phenylacetylene under phase transfer conditions occurs only in the presence of iodomethane giving rise to alkyl phenylethynyl tellurides in high yield.These compounds can also be obtained from alkyltellurenyl iodides and phenylacetylene under the same conditions.Keywords: Alkyl phenylethynyl tellurides, dialkyl ditellurides, iodomethane, phenylacetylene, alkyltellurenyl iodides.
REACTIONS OF CHALCOGENS WITH ACETYLENES. VI. REACTIONS OF CHALCOGENS WITH PHENYLACETYLENE AND ALKYL HALIDES
Potapov, V. A.,Amosova, S. V.,Kashik, A. S.,Gusarova, N. K.,Trofimov, B. A.
, p. 2057 - 2062 (2007/10/02)
A method was developed for the production of alkyl phenylethynyl selenide with yields of up to 70percent on the basis of an investigation into the reaction of chalcogens with phenylacetylene and alkyl halides in the superbasic potassium hydroxide-hexamethylphosphorotriamide system.
ACETYLENIC SELENIDES AND TELLURIDES FROM 1-BROMO, 2-PHENYL ETHYNE
Dabdoub, Miguel J.,Comasseto, Joao V.
, p. 1979 - 1984 (2007/10/02)
Acetylenic selenides and tellurides were prepared in good yields by nucleophilic substitution at acetylenic carbon by reaction of selenolate and tellurolate anions with 1-bromo, 2-phenyl ethyne.
