An Expedient Route to Dihydrothiazines, a Virtually Unknown Class of Heterocycles
摘要:
Upon heating at 180-200 degrees C in diphenyl ether, S-(4-oximinoalkyl)xanthates with a secondary isopropyl or isobutyl group on the oxygen undergo a Chugaev elimination followed by ring closure onto the oxime to give dihydrothiazines, a virtually unknown class of heterocycles.
characterized by a wide scope, high efficiency and straightforward isolation protocol. The synthetic utility of the dithiocarbamates and xanthates was demonstrated on the preparation of symmetrical and unsymmetricalthioureas, isothiocyanates, and thiocarbamates.
Important Phase Control of Indium Sulfide Nanomaterials by Choice of Indium(III) Xanthate Precursor and Thermolysis Temperature
作者:Siphamandla C. Masikane、Paul D. McNaughter、David J. Lewis、Inigo Vitorica‐Yrezabal、Bryan P. Doyle、Emanuela Carleschi、Paul O'Brien、Neerish Revaprasadu
DOI:10.1002/ejic.201900007
日期:2019.3.14
Four In(III) xanthate complexes, [In(S2COR)3] where R = Me, Et, iPr and sBu, respectively, were synthesized, characterized and subsequently used as single source molecular precursors via a solventless thermolysis route to obtain indiumsulfide materials. By choice of precursor and reaction temperature crystalline powders of tetragonal In2S3, cubic In2S3 and cubic In2.77S4 were acquired. The phase identification
合成了四种In(III)黄药酸酯配合物[In(S 2 COR)3 ],其中R = Me,Et,i Pr和s Bu,表征并随后通过无溶剂热解路线用作单源分子前体。获得硫化铟材料。通过选择前驱物和反应温度,得到四方In 2 S 3的结晶粉末,得到立方In 2 S 3和立方In 2.77 S 4。通过检查实验粉末X射线衍射图样与相对于单X射线晶体衍射的模拟图样进行相鉴定和纯度。
DE684497
申请人:——
公开号:——
公开(公告)日:——
Preparation of xanthates
申请人:SHELL DEV
公开号:US02011302A1
公开(公告)日:1935-08-13
Palominos, Mario A.; Vega, Juan C., Phosphorus, Sulfur and Silicon and the Related Elements, 1991, vol. 61, # 3.4, p. 319 - 324