90445-44-6Relevant articles and documents
Access to Diarylmethanols by Wittig Rearrangement of ortho-, meta-, and para-Benzyloxy- N-Butylbenzamides
Aitken, R. Alan,Harper, Andrew D.,Inwood, Ryan A.,Slawin, Alexandra M. Z.
, p. 4692 - 4701 (2022/04/07)
The N-butyl amide group, CONHBu, has been found to be an effective promoter of the [1,2]-Wittig rearrangement of aryl benzyl ethers and thus allow the two-step synthesis of isomerically pure substituted diarylmethanols starting from simple hydroxybenzoic acid derivatives. The method is compatible with a wide range of functional groups including methyl, methoxy, and fluoro, although not with nitro and, unexpectedly, is applicable to meta as well as ortho and para isomeric series.
Direct and selective synthesis of 3-arylphthalides via nickel-catalyzed aryl addition/intramolecular esterification
Qiang, Qing,Liu, Feipeng,Rong, Zi-Qiang
supporting information, (2021/05/10)
Herein we report a nickel-catalyzed aryl addition/intramolecular esterification in a cascade fashion. Under the combination of commercially available nickel precursor and tridentate ligand, the one pot protocol offers a direct, simple and regioselective approach to access 3-aryl phthalide derivatives from two readily available substrates with good efficiency, broad scope as well as satisfactory functional group compatibility.
Catalytic asymmetric synthesis of 3-aryl phthalides enabled by arylation-lactonization of 2-formylbenzoates
Carlos, Andressa M. M.,Stieler, Rafael,Lüdtke, Diogo S.
supporting information, p. 283 - 289 (2019/01/10)
The catalytic asymmetric synthesis of 3-aryl phthalides is reported through a sequential asymmetric arylation-lactonization reaction. The reaction is enabled by a boron-zinc exchange to generate reactive arylating agents, which react with 2-formylbenzoates in the presence of a chiral amino naphthol ligand. The enantiodetermining step is the arylation of the aldehyde, which then undergoes a lactonization event to yield the corresponding phthalides in good yields and enantioselectivities.