Rh(II)-Catalyzed Spirocyclization of α‑Diazo Homophthalimides with Cyclic Ethers [PDF]
, 2019 Rh(II)-catalyzed decomposition of α-diazo homophthalimides in the presence of cyclic ethers gave spirocyclic products of Stevens-type [1,2]-alkyl shift within the postulated oxonium ylide intermediate.
Alexander S. Novikov (1616380) +5 more
core +11 more sources
Bis(arylsulfonyl) Peroxide-Mediated Difunctionalization of Cyclic Enol Ethers [PDF]
, 2023 A bis(arylsulfonyl) peroxide-mediated 1,2-difunctionalization of cyclic enol ethers is reported. Bis(nosyl) peroxide selectively sulfonylates the 3-position of enol ethers, generating an oxocarbenium ion that is trapped by a carboxylic acid nucleophile ...
Armido Studer +3 more
core +1 more source
2 versus E2 Competition of Cyclic Ethers [PDF]
, 2023 We have quantum chemically studied the influence of ring strain on the competition between the two mechanistically different SN2 and E2 pathways using a series of archetypal ethers as substrate in combination with a diverse set of Lewis bases (F−, Cl ...
Hansen, Thomas; id_orcid +9 more
core +1 more source
Metal-Free Synthesis of N-Aryl-Substituted Azacycles from Cyclic Ethers Using POCI3 [PDF]
, 2021 A facile method for the synthesis of N-aryl-substituted azacycles from arylamines and cyclic ethers has been developed. In this study, arylamines were treated with cyclic ethers in the presence of POCI3 and DBU to provide five- and six-membered azacycles.
강수성
core +1 more source
Enantioselective Synthesis of Cyclic Nitrones and Oxime Ethers by Chemoselective Allylic Alkylation of Oximes [PDF]
, 2020 The enantio- and chemoselective iridium-catalyzed N- and O-allylation of oximes is described for the first time. Kinetic resolution in an intramolecular setting provides access to cyclic nitrones, oxime ethers and enantioenriched aliphatic allylic ...
Tobias, Sandmeier, Erick, Carreira
core +1 more source
Copper-Catalyzed Direct Allenylation of Inactive Cyclic Ethers [PDF]
, 2021 We report here a direct allenylation reaction of inactive cyclic ethers. The reaction proceeds through a copper-catalyzed 1,4-difunctionalization of 1,3-enynes, with cyano group installed at the allenes simultaneously.
Zhi-Jie Niu +11 more
core +1 more source
Olefin Metathesis in Cyclic Ether Formation. Direct Conversion of Olefinic Esters to Cyclic Enol Ethers with Tebbe-Type Reagents [PDF]
, 2016 Olefin Metathesis in Cyclic Ether Formation.
Christopher F. Claiborne (2503774) +2 more
core +3 more sources
Caveat in alkylative fragmentation of aldehyde tosylhydrazones of cyclic ethers [PDF]
, 1998 Tosylhtdrazones of aldehydes at the α-position of cyclic ethers when exposed to carbon nucleophiles produce either ring opened alkylated olefinic alcohols and/or cyclic alkylated vinyl ethers, the ratio of which is dependent on nature of hydrazone and ...
Takhi, Mohamed +2 more
core +1 more source
Piers' borane-mediated hydrosilylation of epoxides and cyclic ethers [PDF]
, 2018 We report the first diarylborane-catalysed hydrosilylation of epoxides and cyclic ethers. Mechanistic studies on the in situ generated Piers' borane (C6F5)2BH with hydrosilanes in the presence of an epoxide revealed that an alkyloxy(diaryl)borane (C6F5 ...
Sehoon Park, Sukbok Chang, Jianbo Zhang
core +1 more source
Giant, 2023 ABAC-type periodic poly(cyclic acetal)s were synthesized via a two-step method consisting of the synthesis of a sequence-programmed cyclic trimers from one vinyl monomer and two bifunctional aldehydes (isophthalaldehyde or terephthalaldehyde) and the ...
Tadashi Naito +2 more
doaj +1 more source