- Rapid and efficient protocol for Willgerodt–Kindler’s thioacetamides catalyzed by sulfated polyborate
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Abstract: A simple and efficient method for the synthesis of one-pot, three-component thioacetamides via Willgerodt–Kindler reaction was developed using a sulfated polyborate catalyst. The method described the reaction of ketones, sulfur, and secondary am
- Rekunge, Deelip S.,Khatri, Chetan K.,Chaturbhuj, Ganesh U.
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p. 2091 - 2095
(2017/10/06)
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- Three-component reaction between alkynes, elemental sulfur, and aliphatic amines: A general, straightforward, and atom economical approach to thioamides
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A general, straightforward, and atom-economical three-component synthesis of thioamides from alkynes, elemental sulfur, and aliphatic amines has been developed.
- Nguyen, Thanh Binh,Tran, Minh Quan,Ermolenko, Ludmila,Al-Mourabit, Ali
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supporting information
p. 310 - 313
(2014/01/23)
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- Decarboxylative thioamidation of arylacetic and cinnamic acids: A new approach to thioamides
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A new decarboxylative strategy has been developed for the synthesis of thioamides via a three-component reaction involving arylacetic or cinnamic acids, amines and elemental sulfur powder, without the need of a transition metal and an external oxidant.
- Guntreddi, Tirumaleswararao,Vanjari, Rajeshwer,Singh, Krishna Nand
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supporting information
p. 3624 - 3627
(2014/08/05)
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- Synthesis of thioamides via one-pot A3-coupling of alkynyl bromides, amines, and sodium sulfide
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We herein describe a novel method for the synthesis of thioamides by a three component condensation of alkynyl bromides, amines, and Na 2S·9H2O. The developed method is applicable for a wide range of amines and alkynyl bromides bearing different functional groups furnishing the corresponding products in moderate to excellent yields. The Royal Society of Chemistry.
- Sun, Yadong,Jiang, Huanfeng,Wu, Wanqing,Zeng, Wei,Li, Jianxiao
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supporting information
p. 700 - 707
(2014/01/06)
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- Thionation of amides using a solid-supported P2S5 reagent under microwave irradiation
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In this Letter, we describe an improved method for the thionation of amides. Using a solid-supported P2S5 reagent, heating under microwave irradiation furnished thioamides in good to excellent yields, with a significantly reduced reaction time compared with that achieved under conventional heating. Furthermore, a change of solvent from that described in the literature enabled a simplified work-up and purification of the products.
- Lagiakos, Helen Rachel,Walker, Ashley,Aguilar, Marie-Isabel,Perlmutter, Patrick
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experimental part
p. 5131 - 5132
(2011/10/12)
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- Ultrasound-mediated willgerodt-kindler reactions: Non-thermal synthesis of thioacetamides
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Non-thermal, solvent-free condensation of several aryl methyl ketones with amines and elemental sulfur is efficiently conducted using ultrasonic irradiation within short time periods. Consequently, various thioacetamides are conveniently synthesized. Simi
- Mojtahedi, Mohammad M.,Alishiri, Tooba,Abaee, M. Saeed
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experimental part
p. 1910 - 1915
(2011/10/08)
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- Thioketene Syntheses, VIII. - Thioketenes by Cycloreversion of 1,3-Dithiolane Derivatives
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2-Alkylidene-1,3-dithiolanes are transformed into S,S-dioxides 1 and S-ethyl- 2 or S-arylsulfonium salts 3.After deprotonation at C-5 they form in a cycloreversion thioketenes 5, which can be trapped as thioamides 17, 18.The stabilized thioketenes 5e,i-k afford 1:1 cycloadducts 24a, b, 27a-d with azomethines; in addition, thioketene 5j provides a dimer 28j, which was characterized by an X-ray structural investigation.
- Schaumann, Ernst,Scheiblich, Stefan,Wriede, Ulrich,Adiwidjaja, Gunadi
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p. 1165 - 1176
(2007/10/02)
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- Optimum Conditions for the Willgerodt-Kindler Reaction. 3. Amine Variation
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Optimum conditions for the synthesis of phenylacetic acid thioamids by the joint action of elemental sulfur and amines on acetophenons have been studied with the following amines: Morpholine, pyrrolidine, 4-methylpiperidine, isopropylamine, 2-butylamine,
- Lunstedt, Torbjoern,Carlson, Rolf,Shabana, Rashad
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p. 157 - 163
(2007/10/02)
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- GENERATION OF THIOKETENES VIA CYCLOREVERSION OF 1,3-DITHIOLANE-DERIVED SULFUR YLIDES
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On treatment with base, 1-aryl-2-alkylidene-1,3-dithiolanium salts 6 give clean cycloreversion providing thioketenes 3 and vinyl sulfides 7.
- Schaumann, Ernst,Scheiblich, Stefan
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p. 5269 - 5272
(2007/10/02)
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