KETOKEN GEM-DITHIOLS AND TRITHIONES: SYNTHESIS AND STUDY OF THE BEHAVIOR TOWARDS DIPOLE REAGENTS; SYNTHESIS OF SOME NITROGEN HETEROAROMATICS
作者:Salem E. Zayed
DOI:10.1080/10426509608029632
日期:1996.1.1
Abstract The behavior of ketoken gem-dithiols towards active methylene and methyl groups resulted in the formation of thiopyrano-dihydrocaumarine derivatives IIIa, b via cyclocondensation reaction between substituted 4-dihydrocyclohexanone Ia, b. N-phenylpyrazoline derivative VI was also formed through reaction of gem-dithiol IV with malonic acid followed by phenyl hydrazine. Pyridopyridazine derivative
摘要 酮基二硫醇对活性亚甲基和甲基的行为导致通过取代的 4-二氢环己酮 Ia、b 之间的环缩合反应形成噻吩并二氢黄豆素衍生物 IIIa、b。N-苯基吡唑啉衍生物VI也通过偕二硫醇IV与丙二酸和苯肼反应形成。还可以合成吡啶并哒嗪衍生物XII。还研究了 XV 中硫酮基团对某些偶极系统的行为,以得到螺产物 XVIII-XX。
Carbon Disulfide in Heterocyclic Organic Synthesis; Synthesis of Polyfunctionally Substituted Sulfur and Nitrogen Heteroaromatics
作者:Salem E. Zayed
DOI:10.1080/10426500701407722
日期:2007.7.19
Reaction of cayno acetamdie with carbondisulphide in alkaline medium, e.g., potassium hydroxide, or potassium ter butoxide gave the gem-dithiol (1). While in presence of ammonium hydroxide the ammonium salt (2) was obtained. Reactions of (1) or (2) with different reagents in different mediums gave pyridine, pyrimidines, thiophene, and thiopyranones derivatives.
Kelber; Schwarz, Chemische Berichte, 1911, vol. 44, p. 1698
作者:Kelber、Schwarz
DOI:——
日期:——
Kelber; Schwarz, Chemische Berichte, 1912, vol. 45, p. 146
作者:Kelber、Schwarz
DOI:——
日期:——
Thiafulvenes and Thiafulvalenes in Organic Chemistry: Synthesis and Study its Behavior towards Some Chemical Reagents
作者:Salem E. Zayed、M. Ezel-Dean Hassan、Rawia Ragab
DOI:10.1080/10426500701407730
日期:2007.7.19
Trithiafulvenes were prepared through cycloaddition of 3-thioxo-1,2-dithioles to several electrophilic alkenes and alkynes. Treatments of the product with phenylhydrazine and malononitrile afforded the hydrazone and the dinitrilene derivatives respectively. The bromination and subsequent treatment with KCN and malononitrile afforded the diene derivative. The aniline derivative was also obtained by treatment with chloroaniline.