Oxidation of Benzylic Alcohols to Aromatic Aldehydes by DMSO/Water/I2: A Chemoselective Oxidation

Autor: Ehsan Sheikhi, Morteza Akherati Karajabad, Mehdi Adib

Publikováno v: Organic Preparations and Procedures International. 52:120-126

One of the most important approaches to the preparation of aldehydes from benzylic alcohols is the use of DMSO-based systems, including DMSO/oxalyl chloride/Et3N (Swern oxidation),1,2 DMSO/DCC/H+ (...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::888a4bcf750c2c046cb65779f2637d36
https://doi.org/10.1080/00304948.2020.1716621

Enantioselective addition of sodium bisulfite to nitroalkenes. A convenient approach to chiral sulfonic acids

Autor: Amparo Sanz-Marco, Carlos Vila, M. Carmen Muñoz, Narjes Rezaei, Alvaro Castilla, Ehsan Sheikhi, José R. Pedro, Gonzalo Blay

Publikováno v: Sheikhi, Ehsan Rezaei, Narjes Castilla, Alvaro Sanz Marco, Amparo Vila Descals, Carlos Muñoz, M. Carmen Pedro, José Ramón Blay Llinares, Gonzalo 2021 Enantioselective addition of sodium bisulfite to nitroalkenes. A convenient approach to chiral sulfonic acids European Journal of Organic Chemistry 2021 37 5284 5287
RODERIC. Repositorio Institucional de la Universitat de Valéncia
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An enantioselective organocatalytic addition of sodium bisulfite to (E)-nitroalkenes has been developed by using a chiral bifunctional organocatalyst. The present methodology provides a variety of chiral β-nitroethanesulfonic acid compounds (17 exam

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8db3e118597e5045515a5e911167f7ca
https://hdl.handle.net/10550/80414

Metal-Free Oxidative C(sp3)–N Coupling by HBr and DMSO: A Novel Synthesis of 2,3-Dihydroquinazolin-4(1H)-ones

Autor: Ehsan Sheikhi, Parviz Rashidi Ranjbar, Narjes Rezaei

Publikováno v: Synlett. 29:912-917

A metal-free oxidative C(sp3)–N coupling process has been developed for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones. The reaction between primary amines, isatoic anhydride, and benzylic alcohols in the presence of HBr in DMSO at 80 °C afford

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::da6b5ab9662881a2620497ff1431cd23
https://doi.org/10.1055/s-0036-1591544

Bridgehead Bicyclo[4.4.0]boron Heterocycles: A One-Pot Four-Component Synthesis of Dibenzo[e,i][1,3,7,2]oxadiazaborecin-8(7H)-ones

Autor: Long-Guan Zhu, Mehdi Adib, Ehsan Sheikhi, Sadegh Shabanibalajadeh, Mehdi Rahimi-Nasrabadi

Publikováno v: Helvetica Chimica Acta. 99:659-664

A one-pot four-component synthesis of 6-aryl-6H-dibenzo[e,i][1,3,7,2]oxadiazaborecin-8(7H)-ones is described. Heating a mixture of isatoic anhydride and a benzylamine afforded the corresponding anthranilamide derivative, which was condensed with a 2-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::942b0613cb3718a336801f7b381a7ade
https://doi.org/10.1002/hlca.201500534

A new modification of the Passerini reaction: a one-pot synthesis of α-acyloxyamides via sequential Kornblum oxidation/Passerini reaction

Autor: Mehdi Adib, Marjan Azimzadeh, Ehsan Sheikhi

Publikováno v: Tetrahedron Letters. 56:1933-1936

A novel approach for the synthesis of α-acyloxyamides is described. Benzylic substrates (halides or tosylates), under mild Kornblum conditions, are oxidized to give the corresponding aldehydes, which undergo a Passerini reaction with carboxylic acid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::512f5a42f249b46df0dc5c3c933f48fe
https://doi.org/10.1016/j.tetlet.2015.02.007