Dmitri Anatolyevich Alenichev is a Russian football coach, former player and politician.
"}{"type":"standard","title":"Mitsunobu reaction","displaytitle":"Mitsunobu reaction","namespace":{"id":0,"text":""},"wikibase_item":"Q899062","titles":{"canonical":"Mitsunobu_reaction","normalized":"Mitsunobu reaction","display":"Mitsunobu reaction"},"pageid":1881082,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Mitsunobu-Reaction_V.1.svg/330px-Mitsunobu-Reaction_V.1.svg.png","width":320,"height":104},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Mitsunobu-Reaction_V.1.svg/694px-Mitsunobu-Reaction_V.1.svg.png","width":694,"height":226},"lang":"en","dir":"ltr","revision":"1279096607","tid":"40bee813-fa98-11ef-af23-ddcc17a6aaf3","timestamp":"2025-03-06T14:35:30Z","description":"Chemical reaction","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Mitsunobu_reaction","revisions":"https://en.wikipedia.org/wiki/Mitsunobu_reaction?action=history","edit":"https://en.wikipedia.org/wiki/Mitsunobu_reaction?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Mitsunobu_reaction"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Mitsunobu_reaction","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Mitsunobu_reaction","edit":"https://en.m.wikipedia.org/wiki/Mitsunobu_reaction?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Mitsunobu_reaction"}},"extract":"The Mitsunobu reaction is an organic reaction that converts an alcohol into a variety of functional groups, such as an ester, using triphenylphosphine and an azodicarboxylate such as diethyl azodicarboxylate (DEAD) or diisopropyl azodicarboxylate (DIAD). Although DEAD and DIAD are most commonly used, there are a variety of other azodicarboxylates available which facilitate an easier workup and/or purification and in some cases, facilitate the use of more basic nucleophiles. It was discovered by Oyo Mitsunobu (1934–2003). In a typical protocol, one dissolves the alcohol, the carboxylic acid, and triphenylphosphine in tetrahydrofuran or other suitable solvent, cool to 0 °C using an ice-bath, slowly add the DEAD dissolved in THF, then stir at room temperature for several hours. The alcohol reacts with the phosphine to create a good leaving group then undergoes an inversion of stereochemistry in classic SN2 fashion as the nucleophile displaces it. A common side-product is produced when the azodicarboxylate displaces the leaving group instead of the desired nucleophile. This happens if the nucleophile is not acidic enough or is not nucleophilic enough due to steric or electronic constraints. A variation of this reaction utilizing a nitrogen nucleophile is known as a Fukuyama–Mitsunobu.","extract_html":"
The Mitsunobu reaction is an organic reaction that converts an alcohol into a variety of functional groups, such as an ester, using triphenylphosphine and an azodicarboxylate such as diethyl azodicarboxylate (DEAD) or diisopropyl azodicarboxylate (DIAD). Although DEAD and DIAD are most commonly used, there are a variety of other azodicarboxylates available which facilitate an easier workup and/or purification and in some cases, facilitate the use of more basic nucleophiles. It was discovered by Oyo Mitsunobu (1934–2003). In a typical protocol, one dissolves the alcohol, the carboxylic acid, and triphenylphosphine in tetrahydrofuran or other suitable solvent, cool to 0 °C using an ice-bath, slowly add the DEAD dissolved in THF, then stir at room temperature for several hours. The alcohol reacts with the phosphine to create a good leaving group then undergoes an inversion of stereochemistry in classic SN2 fashion as the nucleophile displaces it. A common side-product is produced when the azodicarboxylate displaces the leaving group instead of the desired nucleophile. This happens if the nucleophile is not acidic enough or is not nucleophilic enough due to steric or electronic constraints. A variation of this reaction utilizing a nitrogen nucleophile is known as a Fukuyama–Mitsunobu.
"}{"type":"standard","title":"Lal Bahadur Shastri Stadium, Hyderabad","displaytitle":"Lal Bahadur Shastri Stadium, Hyderabad","namespace":{"id":0,"text":""},"wikibase_item":"Q287770","titles":{"canonical":"Lal_Bahadur_Shastri_Stadium,_Hyderabad","normalized":"Lal Bahadur Shastri Stadium, Hyderabad","display":"Lal Bahadur Shastri Stadium, Hyderabad"},"pageid":2101588,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/9/97/Lal_Bahadur_Shastri_Stadium.jpg/330px-Lal_Bahadur_Shastri_Stadium.jpg","width":320,"height":240},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/9/97/Lal_Bahadur_Shastri_Stadium.jpg","width":500,"height":375},"lang":"en","dir":"ltr","revision":"1290865753","tid":"1b2347c2-3337-11f0-8d40-fd3d648fa499","timestamp":"2025-05-17T15:53:42Z","description":"Cricket field in India","description_source":"local","coordinates":{"lat":17.39933333,"lon":78.47333333},"content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Lal_Bahadur_Shastri_Stadium%2C_Hyderabad","revisions":"https://en.wikipedia.org/wiki/Lal_Bahadur_Shastri_Stadium%2C_Hyderabad?action=history","edit":"https://en.wikipedia.org/wiki/Lal_Bahadur_Shastri_Stadium%2C_Hyderabad?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Lal_Bahadur_Shastri_Stadium%2C_Hyderabad"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Lal_Bahadur_Shastri_Stadium%2C_Hyderabad","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Lal_Bahadur_Shastri_Stadium%2C_Hyderabad","edit":"https://en.m.wikipedia.org/wiki/Lal_Bahadur_Shastri_Stadium%2C_Hyderabad?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Lal_Bahadur_Shastri_Stadium%2C_Hyderabad"}},"extract":"The Lal Bahadur Shastri Stadium, formerly known as Fateh Maidan, is a multi-purpose sports stadium in Hyderabad, Telangana. The stadium is primarily used for cricket and association football.","extract_html":"
The Lal Bahadur Shastri Stadium, formerly known as Fateh Maidan, is a multi-purpose sports stadium in Hyderabad, Telangana. The stadium is primarily used for cricket and association football.
"}{"fact":"The domestic cat is the only species able to hold its tail vertically while walking. You can also learn about your cat's present state of mind by observing the posture of his tail.","length":180}