3 article(s) from Waser, Mario
Overview about established methods to access enantioenriched 2 and the herein investigated kinetic ...
Jump to Scheme 1
Use of alternative acylating agents 4 for the kinetic resolution of rac-2.
Jump to Scheme 2
Beilstein J. Org. Chem. 2021, 17, 800–804, doi:10.3762/bjoc.17.68
Generally accepted ion-pairing mechanism between the chiral cation Q+ of a PTC and an enolate and s...
Reported asymmetric α-fluorination of β-ketoesters 1 using different chiral PTCs.
Asymmetric α-fluorination of benzofuranones 4 with phosphonium salt PTC F1.
Jump to Scheme 3
Asymmetric α-fluorination of 1 with chiral phosphate-based catalysts.
Jump to Scheme 4
Anionic PTC-catalysed α-fluorination of enamines 7 and ketones 10.
Jump to Scheme 5
PTC-catalysed α-chlorination reactions of β-ketoesters 1.
Jump to Scheme 6
Shioiri’s seminal report of the asymmetric α-hydroxylation of 15 with chiral ammonium salt PTCs.
Jump to Scheme 7
Asymmetric ammonium salt-catalysed α-hydroxylation using oxygen together with a P(III)-based reduct...
Jump to Scheme 8
Asymmetric ammonium salt-catalysed α-photooxygenations.
Jump to Scheme 9
Asymmetric ammonium salt-catalysed α-hydroxylations using organic oxygen-transfer reagents.
Jump to Scheme 10
Asymmetric triazolium salt-catalysed α-hydroxylation with in situ generated peroxy imidic acid 24.
Jump to Scheme 11
Phase-transfer-catalysed dearomatization of phenols and naphthols.
Jump to Scheme 12
Ishihara’s ammonium salt-catalysed oxidative cycloetherification.
Jump to Scheme 13
Chiral phase-transfer-catalysed α-sulfanylation reactions.
Jump to Scheme 14
Chiral phase-transfer-catalysed α-trifluoromethylthiolation of β-ketoesters 1.
Jump to Scheme 15
Chiral phase-transfer-catalysed α-amination of β-ketoesters 1 using diazocarboxylates 38.
Jump to Scheme 16
Asymmetric α-fluorination of benzofuranones 4 using diazocarboxylates 38 in the presence of phospho...
Jump to Scheme 17
Anionic phase-transfer-catalysed α-amination of β-ketoesters 1 with aryldiazonium salts 41.
Jump to Scheme 18
Triazolium salt L-catalysed α-amination of different prochiral nucleophiles with in situ activated ...
Jump to Scheme 19
Phase-transfer-catalysed Neber rearrangement.
Jump to Scheme 20
Beilstein J. Org. Chem. 2017, 13, 1753–1769, doi:10.3762/bjoc.13.170
Some chiral, bioactive isoindolinones.
Jump to Figure 1
This work: 1) trans-1,2-cyclohexane diamine-based bifunctional ammonium salts 8 in the asymmetric s...
Asymmetric cascade, crystallization and decarboxylation reaction.
Proposed racemization pathways of isoindolinones 9 via retro-Michael process.
Asymmetric synthesis of (S)-PD172938.
Coupling of chiral acid 9 with p-tolylpiperazine and CuI arylation of chiral isoindolinones.
Beilstein J. Org. Chem. 2015, 11, 2591–2599, doi:10.3762/bjoc.11.279
Subscribe to our Latest Articles RSS Feed.
Register and get informed about new articles.
Follow the Beilstein-Institut