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Addition of secondary phosphines to divinyl sulfide 二乙烯基硫化物中二次膦的加成
Sulfur Letters Pub Date : 2003-04-01 DOI: 10.1080/0278611031000112647
B. Trofimov, N. Gusarova, S. Malysheva, B. Sukhov, N. Belogorlova, V. Kuimov
{"title":"Addition of secondary phosphines to divinyl sulfide","authors":"B. Trofimov, N. Gusarova, S. Malysheva, B. Sukhov, N. Belogorlova, V. Kuimov","doi":"10.1080/0278611031000112647","DOIUrl":"https://doi.org/10.1080/0278611031000112647","url":null,"abstract":"Divinyl sulfide quantitatively adds two molecules of secondary phosphines under conditions of radical initiation (AIBN, UV irradiation) to form regiospecifically bis[2-(diorganylphosphino)ethyl] sulfides.","PeriodicalId":22122,"journal":{"name":"Sulfur Letters","volume":"18 1","pages":"63 - 66"},"PeriodicalIF":0.0,"publicationDate":"2003-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78132426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Synthesis of novel bicycloalkane ring-fused pyridines via Michael addition reaction of a,ß-Unsaturated Nitriles a，ß-不饱和腈的Michael加成反应合成新型双环烷环融合吡啶
Sulfur Letters Pub Date : 2003-04-01 DOI: 10.1080/0278611031000095359
A. A. El-Shehawy, A. E. Ismail, A. Attia
{"title":"Synthesis of novel bicycloalkane ring-fused pyridines via Michael addition reaction of a,ß-Unsaturated Nitriles","authors":"A. A. El-Shehawy, A. E. Ismail, A. Attia","doi":"10.1080/0278611031000095359","DOIUrl":"https://doi.org/10.1080/0278611031000095359","url":null,"abstract":"Camphorylidene(cyano)thioacetamide (3) and camphorylidenemalononitrile (9) were easily prepared by the reaction of (+)-camphor (1) with cyanothioacetamide (2) and malononitrile (8), respectively, under solid-liquid phase-transfer catalyzed conditions. The reaction of the arylidene derivatives of malononitrile, cyanothioacetamide and cyanoacetamide with 3 and 9 leads to condensed 2-thioxo- and 2-oxo-pyridine derivatives. Treatment of the latter compounds with P4S10 causes transformation into the corresponding pyridinethiones.","PeriodicalId":22122,"journal":{"name":"Sulfur Letters","volume":"18 1","pages":"55 - 62"},"PeriodicalIF":0.0,"publicationDate":"2003-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80934779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Efficient synthesis of new 6-nitrobenzothiazoles using microwave irradiation 微波辐照高效合成新型6-硝基苯并噻唑
Sulfur Letters Pub Date : 2003-04-01 DOI: 10.1080/0278611031000104970
Yves Njoya, A. Gellis, M. Crozet, P. Vanelle
{"title":"Efficient synthesis of new 6-nitrobenzothiazoles using microwave irradiation","authors":"Yves Njoya, A. Gellis, M. Crozet, P. Vanelle","doi":"10.1080/0278611031000104970","DOIUrl":"https://doi.org/10.1080/0278611031000104970","url":null,"abstract":"2-Chloromethyl-6-nitrobenzothiazole 2 is obtained by cyclocondensation of 2-aminobenzenethiol and chloroacetic acid. This product allows the synthesis of 2-alkyl-6-nitrobenzothiazoles 5, 17-24 under microwave activation via an electron transfer reaction by successive C-alkylation of nitronate anions 3, 6-13 and nitrous acid elimination.","PeriodicalId":22122,"journal":{"name":"Sulfur Letters","volume":"28 1","pages":"67 - 75"},"PeriodicalIF":0.0,"publicationDate":"2003-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81331098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
Structure of ditrityl-2-selenatrisulfide 二丁基-2-硒代硫化物的结构
Sulfur Letters Pub Date : 2003-02-01 DOI: 10.1080/0278611021000048677
M. Ryan, I. Abu-Yousef, A. Rys, C. Cheer, D. Harpp
{"title":"Structure of ditrityl-2-selenatrisulfide","authors":"M. Ryan, I. Abu-Yousef, A. Rys, C. Cheer, D. Harpp","doi":"10.1080/0278611021000048677","DOIUrl":"https://doi.org/10.1080/0278611021000048677","url":null,"abstract":"The X-ray crystal structure determination of ditritylseleno trisulfide 5 was obtained. C 38 H 30 S 2 Se, Mr=629.74, monoclinic, p 2 1 / n , a =14.078(4), b =12.852(4), c =17.171(6) Å, β=98.08(2)°. V =3070.7 Å 3 , Z =4, Do=1.37 g/cm 3 , MoK α , λ=0.71069 Å, μ=14.66 cm −1 , F (000)=370, T =293(2) K, R ( R w )=0.0355(0.0342) for 2895 observed independent reflections [ F >2.5σ( F )], goodness of fit=1.104. The material was obtained by reacting trityl thiol 6 with the first selenium transfer reagent bis- N -benzotriazol-1-yl selenide 7 .","PeriodicalId":22122,"journal":{"name":"Sulfur Letters","volume":"44 1","pages":"29 - 33"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74205378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A facile synthesis of 4-naphthyl-3-cyano-2-(β-d-pyranosylthio) pyridines 4-萘-3-氰-2-(β-d-pyranosylthio)吡啶的简单合成
Sulfur Letters Pub Date : 2003-02-01 DOI: 10.1080/0278611021000048695
A. Attia
{"title":"A facile synthesis of 4-naphthyl-3-cyano-2-(β-d-pyranosylthio) pyridines","authors":"A. Attia","doi":"10.1080/0278611021000048695","DOIUrl":"https://doi.org/10.1080/0278611021000048695","url":null,"abstract":"The treatment of piperidinium salt of 4-naphthyl-3-cyano-2-thiopyridines with an O -peracetyl-α-D-pyranosyl bromide in dry acetone provides a new and simple method for the synthesis of 2-(β-D-pyranosylthio) pyridines in high yields. The site of glycosylation on the pyridine ring was confirmed by 1 H and 13 C NMR spectral analysis.","PeriodicalId":22122,"journal":{"name":"Sulfur Letters","volume":"26 1","pages":"15 - 9"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81671193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Fused thiazole from 2-(4-phenyl-3(h)-thiazol-2-ylidene) malononitrile: A novel synthesis of thiazolo[3,2- c ]pyrimidine, thiazolo[3,2- a ]pyridine, pyrazolo[3,4- d ]-1,3-thiazolino[2,3- f ]pyrimidine and arylazo thiazolylidene derivatives 由2-(4-苯基-3(h)-噻唑-2-酰基)丙二腈熔合噻唑:新合成噻唑[3,2- c]嘧啶、噻唑[3,2- A]吡啶、吡唑[3,4- d]-1,3-噻唑基[2,3- f]嘧啶及芳基噻唑-噻唑酰基衍生物
Sulfur Letters Pub Date : 2003-02-01 DOI: 10.1080/0278611031000104916
Abdellatif M. Salah Eldin
{"title":"Fused thiazole from 2-(4-phenyl-3(h)-thiazol-2-ylidene) malononitrile: A novel synthesis of thiazolo[3,2- c ]pyrimidine, thiazolo[3,2- a ]pyridine, pyrazolo[3,4- d ]-1,3-thiazolino[2,3- f ]pyrimidine and arylazo thiazolylidene derivatives","authors":"Abdellatif M. Salah Eldin","doi":"10.1080/0278611031000104916","DOIUrl":"https://doi.org/10.1080/0278611031000104916","url":null,"abstract":"2-(4-Phenyl-3(H)-thiazol-2-ylidene) malononitrile was obtained from cyclo-condensation of cyanatoacetophenone with malononitrile and not via the Knoevenagel condensation, depending on the reaction conditions. The synthesis of thiazolo[3,2- a ]pyridine, thiazolo[3,2- c ]pyrimidine, pyrazolo[3,4- d ]-1,3-thiazolino[2,3- f ]pyrimidine and some azo derivatives of thiazolidene are described.","PeriodicalId":22122,"journal":{"name":"Sulfur Letters","volume":"30 1","pages":"35 - 41"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90580045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Synthesis and structural study of arylidene thiazolidine and benzothiazine compounds 芳基噻唑烷和苯并噻嗪类化合物的合成及结构研究
Sulfur Letters Pub Date : 2003-02-01 DOI: 10.1080/0278611021000048712
V. Guarda, M. Pereira, C. A. de Simone, J. Albuquerque, S. Galdino, J. Chantegrel, M. Perrissin, C. Beney, F. Thomasson, I. Pitta, C. Luu-duc
{"title":"Synthesis and structural study of arylidene thiazolidine and benzothiazine compounds","authors":"V. Guarda, M. Pereira, C. A. de Simone, J. Albuquerque, S. Galdino, J. Chantegrel, M. Perrissin, C. Beney, F. Thomasson, I. Pitta, C. Luu-duc","doi":"10.1080/0278611021000048712","DOIUrl":"https://doi.org/10.1080/0278611021000048712","url":null,"abstract":"Synthesis and physico-chemical properties of some 5-arylidene-3-(2-biphenyl-4-yl-2-oxo-ethyl)- and 3-(4-bromo-benzyl)-4-thioxo-thiazolidin-2-ones, 5-arylidene-3-(4-chloro-benzyl)-4-thioxo- and 4-oxo-thiazolidin-2-ones and 2-arylidene-6-benzoyl-amino- or 6-amino-4 H -benzo[1,4]thiazin-3-ones are described. These arylidene thiazolidines and benzothiazines compounds were prepared by Knoevenagel condensation with benzaldehydes.","PeriodicalId":22122,"journal":{"name":"Sulfur Letters","volume":"87 1","pages":"17 - 27"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75848352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
Facile synthesis of substituted 5-hydroxythio-7h-thieno[3,2-g] [1]benzothiopyran-7-ones 取代5-羟基硫代-7h-硫代[3,2-g][1]苯并噻吩吡喃-7-ones的简易合成
Sulfur Letters Pub Date : 2003-02-01 DOI: 10.1080/0278611021000011965
G. Chandramouli, P. Reddy, B. Prassana
{"title":"Facile synthesis of substituted 5-hydroxythio-7h-thieno[3,2-g] [1]benzothiopyran-7-ones","authors":"G. Chandramouli, P. Reddy, B. Prassana","doi":"10.1080/0278611021000011965","DOIUrl":"https://doi.org/10.1080/0278611021000011965","url":null,"abstract":"Lewis acid (BF 3 (OEt) 2 ) in dry diethyl ether mediated cyclization and demethylation of substituted 2-(2-methyl-3-methylsulfanyl-phenylsulfanyl)-1,2-diphenyl-ethanones (3a-e) at ambient temperature gave 7-methyl-2,3-diphenyl-6-thio-benzo[b]thiophenes (4a-e). Treatment of (4a-e) with substituted malonic acids furnishes the corresponding substituted 5-hydroxythio-7H-thieno[3,2-g][1] benzothiopyran-7-aones. These were characterized by their elemental, IR, 1 H NMR and mass spectral analysis.","PeriodicalId":22122,"journal":{"name":"Sulfur Letters","volume":"4 1","pages":"1 - 8"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85177126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Functionally substituted 1,3-diethenyl [1,2- c ][1,3]pyrrolothiazoles from pyrrole-2-carbodithioates 从吡咯-2-碳硫酸盐中功能化取代1,3-二乙烯基[1,2- c][1,3]吡咯洛噻唑
Sulfur Letters Pub Date : 2002-01-01 DOI: 10.1080/02786110212862
L. Sobenina, A. Demenev, A. Mikhaleva, A. Ushakov, A. Afonin, O. Petrova, V. Elokhina, K. Volkova, D. Toryashinova, B. Trofimov
{"title":"Functionally substituted 1,3-diethenyl [1,2- c ][1,3]pyrrolothiazoles from pyrrole-2-carbodithioates","authors":"L. Sobenina, A. Demenev, A. Mikhaleva, A. Ushakov, A. Afonin, O. Petrova, V. Elokhina, K. Volkova, D. Toryashinova, B. Trofimov","doi":"10.1080/02786110212862","DOIUrl":"https://doi.org/10.1080/02786110212862","url":null,"abstract":"The reaction of pyrrole-2-carbodithioates with methylenoactive nitriles and 2-benzoyl-1-bromoacetylene in the KOH-DMSO system leads to functionally substituted pyrrolothiazoles in 59-85% yield.","PeriodicalId":22122,"journal":{"name":"Sulfur Letters","volume":"27 1","pages":"87 - 93"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74717159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Zinc-mediated simple and practical synthesis of sulfides 锌介导的简单实用的硫化物合成
Sulfur Letters Pub Date : 2002-01-01 DOI: 10.1080/02786110215843
B. P. Bandgar, S. Pandit, S. Nagargoje
{"title":"Zinc-mediated simple and practical synthesis of sulfides","authors":"B. P. Bandgar, S. Pandit, S. Nagargoje","doi":"10.1080/02786110215843","DOIUrl":"https://doi.org/10.1080/02786110215843","url":null,"abstract":"A novel and inexpensive method for the synthesis of thioethers from alkyl halides and thiols using zinc has been developed.","PeriodicalId":22122,"journal":{"name":"Sulfur Letters","volume":"7 1","pages":"247 - 249"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74406524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
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