/ Home
/ SUBMISSION

/ The BJOC
/ Diamond Open Access
/ Journal Statistics
/ Editorial Board
/ Community
/ Call for papers

/ Latest Articles
/ Most accessed
/ Thematic issues
/ Volumes
/ Authors

/ Alerts

/ TWITTER
/ LINKEDIN
/ Mastodon
/ RSS FEED

Empty search

Article Type

Publication Date Range

Search Tips

This search combines search strings from the content search (i.e. "Full Text", "Author", "Title", "Abstract", or "Keywords") with "Article Type" and "Publication Date Range" using the AND operator.

Search Examples

aromatic	the word “aromatic”
aromatic aldehyde	the word “aromatic” OR “aldehyde”
+aromatic +aldehyde	both words “aromatic” AND “aldehyde”
+aromatic -aldehyde	the word “aromatic” but NOT “aldehyde”
“aromatic aldehyde”	the exact phrase “aromatic aldehyde”
benz*	words which begin with “benz”, such as “benzene” or “benzyl”
benz*yl	words that begin with “benz” and end with “yl”, such as “benzyl” or “benzoyl”
benzyl~	words that are close to the word “benzyl”, such as “benzoyl” (i.e., fuzzy search)

BROWSE
Latest Articles
Most accessed
thematic issues
volumes
authors

BROWSE

Latest Articles Most Accessed Thematic Issues Volumes Authors

Author

2 article(s) from Tiffner, Maximilian

Chiral phase-transfer catalysis in the asymmetric α-heterofunctionalization of prochiral nucleophiles

Johannes Schörgenhumer,
Maximilian Tiffner and
Mario Waser

Beilstein J. Org. Chem. 2017, 13, 1753–1769, doi:10.3762/bjoc.13.170

PDF

Graphical Abstract

Scheme 1: Generally accepted ion-pairing mechanism between the chiral cation Q⁺ of a PTC and an enolate and s...

Jump to Scheme 1

Scheme 2: Reported asymmetric α-fluorination of β-ketoesters 1 using different chiral PTCs.

Jump to Scheme 2

Scheme 3: Asymmetric α-fluorination of benzofuranones 4 with phosphonium salt PTC F1.

Jump to Scheme 3

Scheme 4: Asymmetric α-fluorination of 1 with chiral phosphate-based catalysts.

Jump to Scheme 4

Scheme 5: Anionic PTC-catalysed α-fluorination of enamines 7 and ketones 10.

Jump to Scheme 5

Scheme 6: PTC-catalysed α-chlorination reactions of β-ketoesters 1.

Jump to Scheme 6

Scheme 7: Shioiri’s seminal report of the asymmetric α-hydroxylation of 15 with chiral ammonium salt PTCs.

Jump to Scheme 7

Scheme 8: Asymmetric ammonium salt-catalysed α-hydroxylation using oxygen together with a P(III)-based reduct...

Jump to Scheme 8

Scheme 9: Asymmetric ammonium salt-catalysed α-photooxygenations.

Jump to Scheme 9

Scheme 10: Asymmetric ammonium salt-catalysed α-hydroxylations using organic oxygen-transfer reagents.

Jump to Scheme 10

Scheme 11: Asymmetric triazolium salt-catalysed α-hydroxylation with in situ generated peroxy imidic acid 24.

Jump to Scheme 11

Scheme 12: Phase-transfer-catalysed dearomatization of phenols and naphthols.

Jump to Scheme 12

Scheme 13: Ishihara’s ammonium salt-catalysed oxidative cycloetherification.

Jump to Scheme 13

Scheme 14: Chiral phase-transfer-catalysed α-sulfanylation reactions.

Jump to Scheme 14

Scheme 15: Chiral phase-transfer-catalysed α-trifluoromethylthiolation of β-ketoesters 1.

Jump to Scheme 15

Scheme 16: Chiral phase-transfer-catalysed α-amination of β-ketoesters 1 using diazocarboxylates 38.

Jump to Scheme 16

Scheme 17: Asymmetric α-fluorination of benzofuranones 4 using diazocarboxylates 38 in the presence of phospho...

Jump to Scheme 17

Scheme 18: Anionic phase-transfer-catalysed α-amination of β-ketoesters 1 with aryldiazonium salts 41.

Jump to Scheme 18

Scheme 19: Triazolium salt L-catalysed α-amination of different prochiral nucleophiles with in situ activated ...

Jump to Scheme 19

Scheme 20: Phase-transfer-catalysed Neber rearrangement.

Jump to Scheme 20

Album

Review

Published 22 Aug 2017

Full text

Bifunctional phase-transfer catalysis in the asymmetric synthesis of biologically active isoindolinones

Antonia Di Mola,
Maximilian Tiffner,
Francesco Scorzelli,
Laura Palombi,
Rosanna Filosa,
Paolo De Caprariis,
Mario Waser and
Antonio Massa

Beilstein J. Org. Chem. 2015, 11, 2591–2599, doi:10.3762/bjoc.11.279

PDF

Graphical Abstract

Figure 1: Some chiral, bioactive isoindolinones.

Jump to Figure 1

Scheme 1: This work: 1) trans-1,2-cyclohexane diamine-based bifunctional ammonium salts 8 in the asymmetric s...

Jump to Scheme 1

Scheme 2: Asymmetric cascade, crystallization and decarboxylation reaction.

Jump to Scheme 2

Scheme 3: Proposed racemization pathways of isoindolinones 9 via retro-Michael process.

Jump to Scheme 3

Scheme 4: Asymmetric synthesis of (S)-PD172938.

Jump to Scheme 4

Scheme 5: Coupling of chiral acid 9 with p-tolylpiperazine and CuI arylation of chiral isoindolinones.

Jump to Scheme 5

Album

Supp Info

Full Research Paper

Published 15 Dec 2015

Full text

Other Beilstein-Institut Open Science Activities

/ Help / Support & Contact / Alerts / Privacy Policy / Terms & Conditions / Impressum