翻訳と辞書 Words near each other ・ Thioether ・ Thioether S-methyltransferase ・ Thiofanox ・ Thiofentanyl ・ Thioflavin ・ Thiofrid of Echternach ・ Thioglycolate broth ・ Thioglycolic acid ・ Thiognatha ・ Thiognatha mameti ・ Thiognatha metachalca ・ Thioindigo ・ Thioinosinic acid ・ Thioketal ・ Thioketene ・ Thioketone ・ Thiokinase ・ Thiokol ・ Thiokol (polymer) ・ Thiokol-Woodbine explosion ・ Thiol ・ Thiol oxidase ・ Thiol S-methyltransferase ・ Thiol sulfotransferase ・ Thiol-activated cytolysin ・ Thiol-ene reaction ・ Thiol-yne reaction ・ Thiolactic acid ・ Thiolactone ・ Thiolase Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Thioketone ： ウィキペディア英語版 Thioketone Thioketones (also known as thiones or thiocarbonyls) are organosulfur compounds related to conventional ketones. Instead of the formula R2C=O, thioketones have the formula R2C=S, which is reflected by the prefix "thio-" in the name of the functional group. Unhindered alkylthioketones typically tend to form polymers or rings. ==Preparative methods== Thiones are usually prepared from ketones using reagents that exchange S and O atoms. A common reagent is phosphorus pentasulfide〔Vivek Polshettiwar, M.P. Kaushik "A new, efficient and simple method for the thionation of ketones to thioketones using P4S10/Al2O3" Tetrahedron Letters 2004, Volume 45, 6255-6257. 〕 and its derivative Lawesson's reagent. Other methods uses a mixture of hydrogen chloride combined with hydrogen sulfide. Bis(trimethylsilyl)sulfide has also been employed. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Thioketone」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.