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第 11 章

エーテル、エポキシド、スルフィド

エーテルの構造と命名法
エーテルの構造と命名法
Structure and Bonding Ethers are organic compounds with an ether functional group which is characterized by an oxygen atom connected to two — ...
エーテルの物性
エーテルの物性
Overview An ether molecule has a net dipole moment due to the polarity of C–O bonds. Subsequently, boiling points of ethers are lower than those of ...
アルコールからのエーテル:アルコール脱水とウィリアムソンエーテル合成
アルコールからのエーテル:アルコール脱水とウィリアムソンエーテル合成
Overview Ethers can be prepared from organic compounds by various methods. Some of them are discussed below, Preparation of Ethers by Alcohol Dehydration ...
アルケンからのエーテル:アルコール添加とアルコキシ水銀キュレーション-水銀除去
アルケンからのエーテル:アルコール添加とアルコキシ水銀キュレーション-水銀除去
Overview Ethers can also be prepared from alkenes through acid-catalyzed addition of alcohols and alkoxymercuration–demercuration. Preparation of ...
エーテルからハロゲン化アルキルへの:酸性切断
エーテルからハロゲン化アルキルへの:酸性切断
Ethers are generally unreactive and unsuitable for direct nucleophilic substitution reactions since the alkoxy groups are strong bases and, therefore, ...
エーテルの過酸化物およびヒドロペルオキシドへの自動酸化
エーテルの過酸化物およびヒドロペルオキシドへの自動酸化
Ethers represent a class of chemical compounds that become more dangerous with prolonged storage because they tend to form explosive peroxides when ...
クラウンエーテル
クラウンエーテル
Crown ethers are cyclic polyethers that contain multiple oxygen atoms, usually arranged in a regular pattern. The first crown ether was synthesized by ...
エポキシドの構造と命名法
エポキシドの構造と命名法
Cyclic ethers are heterocyclic compounds with an oxygen atom in the ring along with carbon atoms. They are named depending on the number of carbon atoms ...
エポキシドの調製
エポキシドの調製
Overview Epoxides result from alkene oxidation, which can be achieved by a) air, b) peroxy acids, c) hypochlorous acids, and d) halohydrin ...
シャープレスエポキシド
シャープレスエポキシド
The conversion of allylic alcohols into epoxides using the chiral catalyst was discovered by K. Barry Sharpless and is known as Sharpless epoxidation. The ...
酸触媒によるエポキシドの開環
酸触媒によるエポキシドの開環
Epoxides that are three-membered ring systems are more reactive than other cyclic and acyclic ethers. The high reactivity of epoxides originates from the ...
エポキシドの塩基触媒開環
エポキシドの塩基触媒開環
Due to their highly strained structures, epoxides can readily undergo ring-opening reactions through nucleophilic substitution, either in the presence of ...
チオールと硫化物の構造と命名法
チオールと硫化物の構造と命名法
Thiols and sulfides are sulfur analogs of alcohols and ethers, respectively, where the sulfur atom takes the place of the oxygen atom. Thus, thiols are ...
チオールの調製と反応
チオールの調製と反応
Thiols are prepared using the hydrosulfide anion as a nucleophile in a nucleophilic substitution reaction with alkyl halides. For instance, bromobutane ...
硫化物の調製と反応
硫化物の調製と反応
Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups ...
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