4115-19-9Relevant academic research and scientific papers
An Expeditious Ultrasound-Initiated Green Synthesis of 1,2,4-Thiadiazoles in Water
Chauhan, Swati,Verma, Pratibha,Mishra, Ankush,Srivastava, Vandana
, p. 123 - 126 (2020/02/18)
[Figure not available: see fulltext.] A convenient, environmentally benign, metal- and catalyst-free protocol has been developed for the conversion of thioamides to the corresponding 1,2,4-thiadiazole derivatives with chloranil under ultrasound irradiation in water at room temperature. This paper describes a general procedure for the synthesis of different 1,2,4-thiadiazoles in excellent yield in short reaction time via sonochemistry.
Highly efficient synthesis of 1,2,4-thiadiazoles from thioamides utilizing tetra(n-butyl)ammonium peroxydisulfate
Lee, Kieseung,Lee, Richard S.,Kim, Yong Hae
supporting information, p. 1774 - 1779 (2020/06/01)
A new synthetic approach to 1,2,4-thiadiazoles using tetra(n-butyl)ammonium peroxydisulfate via oxidative dimerization of thioamides is described. This new oxidative protocol is simple, highly efficient, and allows the practical synthesis of 1,2,4-thiadiazoles from various primary thioamides in good to excellent yields.
Novel method for electrochemically synthesizing 1, 2, 4 - thiadiazole compounds
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Paragraph 0044-0048, (2019/08/31)
The invention discloses a novel method for electrochemically synthesizing a 1,2,4-thiadiazole compound. Specifically, the novel method comprises the following steps: adding 0.5mmol of thioamide, 0.025mmol of ammonium iodide, 3mL of methanol and 3mL of ace
tert-Butyl nitrite induced radical dimerization of primary thioamides and selenoamides at room temperature
Chauhan, Swati,Chaudhary, Priyanka,Singh, Adesh Kumar,Verma, Pratibha,Srivastava, Vandana,Kandasamy, Jeyakumar
supporting information, p. 272 - 276 (2017/12/26)
A simple and efficient method for the dimerization of primary thioamides into 1,2,4-thiadiazoles using tert-butyl nitrite is described. The optimized condition was also found to be suitable for the dimerization of benzoselenoamides into 1,2,4-selenadiazoles. All the reactions proceed smoothly at room temperature and gave the desired products in excellent yields in a short span of time.
Electrochemical Synthesis of 3,5-Disubstituted-1,2,4-thiadiazoles through NH4I-Mediated Dimerization of Thioamides
Wang, Zi-Qiang,Meng, Xiu-Jin,Li, Qian-Yu,Tang, Hai-Tao,Wang, Heng-Shan,Pan, Ying-Ming
supporting information, p. 4043 - 4048 (2018/09/21)
A electrochemical method for the synthesis of 3,5-disubstituted-1,2,4-thiadiazoles through NH4I-mediated dimerization of thioamides is reported. Using the inexpensive NH4I as electrolyte and catalyst, this electrosynthesis approach requires no oxidizing agents and enables the convenient production of diverse 1,2,4-thiadiazoles products. The approach is an example of S?N bond construction through the electrochemical method. (Figure presented.).
Synthesis of 1,2,4-thiadiazoles by oxidative dimerization of carbothioamides by using oxone
Yoshimura, Akira,Todora, Anthony D.,Kastern, Brent J.,Koski, Steven R.,Zhdankin, Viktor V.
supporting information, p. 5149 - 5152 (2014/11/08)
1,2,4-Thiadiazoles were efficiently synthesized in good yields through the oxidative dimerization of carbothioamides by using Oxone as a readily available, inexpensive, and environmentally safe oxidant. A similar reaction of phenylselenoamide led to the corresponding 1,2,4-phenylselenadiazole in high yield. Copyright
IBX/TEAB-mediated oxidative dimerization of thioamides: synthesis of 3,5-disubstituted 1,2,4-thiadiazoles
Patil, Pravin C.,Bhalerao, Dinesh S.,Dangate, Prasad S.,Akamanchi, Krishnacharya G.
experimental part, p. 5820 - 5822 (2009/12/26)
Thioamides undergo oxidative dimerization on treatment with hypervalent iodine(V)-containing reagents, particularly o-iodoxybenzoic acid (IBX), in the presence of tetraethylammonium bromide (TEAB) to generate 3,5-disubstituted 1,2,4-thiadiazoles in excellent yield.
Convenient Preparations of 3,5-Disubstituted 1,2,4-Thiadiazoles by Oxidative Dimerization of Thioamides
Takikawa, Yuji,Shimada, Kazuaki,Sato, Katsuyuki,Sato, Shinichi,Takizawa, Saburo
, p. 995 - 999 (2007/10/02)
3,5-Disubstituted 1,2,4-thiadiazoles 2 were prepared by reaction of thioamides 1 with DMSO in the presence of such an electrophilic reagent as 1-methyl-2-chloropyridinium iodide, benzoyl chloride, acetyl chloride, hydrochloric acid, or trimethylsilyl chloride in organic solvents at room temperature in high yields.Thiadiazoles 2 were also obtained by reaction of 1 with NBS at room temperature in high yields.Thioamide S-oxides reacted with electrophilic reagents at room temperature to give the corresponding thiadiazoles 2 in high yields.
