翻訳と辞書 Words near each other ・ Sulfide-cytochrome-c reductase (flavocytochrome c) ・ Sulfido ・ Sulfilimine ・ Sulfina Barbu ・ Sulfinalol ・ Sulfinamide ・ Sulfinic acid ・ Sulfinoalanine decarboxylase ・ Sulfinpyrazone ・ Sulfinyl halide ・ Sulfiram ・ Sulfiredoxin ・ Sulfisomidine ・ Sulfite ・ Sulfite dehydrogenase ・ Sulfite ester ・ Sulfite oxidase ・ Sulfite process ・ Sulfite reductase ・ Sulfite reductase (ferredoxin) ・ Sulfite reductase (NADPH) ・ Sulfitobacter ・ Sulfitobacter brevis ・ SULFNBK.EXE ・ Sulfoacetaldehyde acetyltransferase ・ Sulfoacetaldehyde dehydrogenase ・ Sulfoacetaldehyde dehydrogenase (acylating) ・ Sulfoacetaldehyde reductase ・ Sulfoaildenafil ・ Sulfobacillus acidophilus 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 Sulfite ester ： ウィキペディア英語版 Sulfite ester A sulfite ester is a functional group with the structure (RO)(R'O)SO. They adopt a trigonal pyramidal molecular geometry due to the presence of lone pairs on the sulphur atom. When substituents R and R' differ, the compound is chiral owing to the stereogenic sulphur centre; when the R groups are the same the compound will have idealised Cs molecular symmetry. They are commonly prepared by the reaction of thionyl chloride with alcohols.〔McCormack, W. B.; Lawes, B. C. "Sulfuric and sulfurous esters" Kirk-Othmer Encycl. Chem. Technol., 3rd Ed. (1983), 22, 233-54.〕 The reaction is typically performed at room temperature to prevent the alcohol being converted into a chloroalkane. Bases such as pyridine can also be used to promote the reaction: : 2 ROH + SOCl2 → (RO)2SO + 2 HCl The pesticide endosulfan is a sulfite ester. Some simple members include ethylene sulfite, dimethyl sulfite, and diphenylsulfite. Many examples have been prepared from diols, such as sugars. Sulfite esters can be powerful alkylation and hydroxyalkylation reagents. ==References== 〔 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「Sulfite ester」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.