/ 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

5 article(s) from Punta, Carlo

Dynamics and interactions of ibuprofen in cyclodextrin nanosponges by solid-state NMR spectroscopy

Monica Ferro,
Franca Castiglione,
Nadia Pastori,
Carlo Punta,
Lucio Melone,
Walter Panzeri,
Barbara Rossi,
Francesco Trotta and
Andrea Mele

Beilstein J. Org. Chem. 2017, 13, 182–194, doi:10.3762/bjoc.13.21

PDF

Graphical Abstract

Figure 1: Schematic thermodynamic description of the CP process and time constants. The I-S model (left), the ...

Jump to Figure 1

Figure 2: ¹H MAS NMR spectra of a) CDNS(1:8)-IbuNa and b) CDNS(1:8). The inset (top right) shows the expansio...

Jump to Figure 2

Figure 3: The effect of the spinning speed on the spectral features. ¹H MAS NMR spectra of a) CDNS(1:4)-IbuNa...

Jump to Figure 3

Figure 4: ¹³C CP-MAS NMR spectra for samples of β-CD (top), CDNS(1:4) (middle) and CDNS(1:8) polymers (bottom...

Jump to Figure 4

Figure 5: ¹³C CP-MAS NMR spectrum of: a) CDNS(1:4) polymer; b) CDNS(1:4)-IbuNa system; c) CDNS(1:8)-IbuNa sys...

Jump to Figure 5

Figure 6: ¹³C CP-MAS NMR spectra of CDNS(1:4) acquired with CP variable contact time in the range 50 μs–7 ms.

Jump to Figure 6

Figure 7: Time dependence of ¹³C magnetization for CDNS(1:4) (left) and CDNS(1:8) (right) polymers.

Jump to Figure 7

Figure 8: ¹H-¹³C CP oscillatory kinetics for the carbon C(1) and C(4) of CDNS(1:4)-IbuNa sample (left) and CD...

Jump to Figure 8

Figure 9: ¹H-¹³C CP oscillatory kinetics for the ibuprofen aromatic carbon atoms C(6,8) in samples CDNS(1:4)-...

Jump to Figure 9

Figure 10: PXRD patterns of: a) CDNS(1:8), b) CDNS(1:4), c) CDNS(1:8)-IbuNa loaded, d) CDNS(1:4)-IbuNa loaded,...

Jump to Figure 10

Album

Full Research Paper

Published 27 Jan 2017

Full text

Multicomponent versus domino reactions: One-pot free-radical synthesis of β-amino-ethers and β-amino-alcohols

Bianca Rossi,
Nadia Pastori,
Simona Prosperini and
Carlo Punta

Beilstein J. Org. Chem. 2015, 11, 66–73, doi:10.3762/bjoc.11.10

PDF

Graphical Abstract

Scheme 1: Nucleophilic radical addition to imines mediated by titanium salts.

Jump to Scheme 1

Scheme 2: Radical domino approach to the synthesis of β-aminoacohols triggered by titanium salts.

Jump to Scheme 2

Scheme 3: Competitive imine formation from THF.

Jump to Scheme 3

Scheme 4: Reaction mechanism.

Jump to Scheme 4

Scheme 5: Domino reaction in the presence of ethanol.

Jump to Scheme 5

Album

Supp Info

Full Research Paper

Published 15 Jan 2015

Full text

Anomalous diffusion of Ibuprofen in cyclodextrin nanosponge hydrogels: an HRMAS NMR study

Monica Ferro,
Franca Castiglione,
Carlo Punta,
Lucio Melone,
Walter Panzeri,
Barbara Rossi,
Francesco Trotta and
Andrea Mele

Beilstein J. Org. Chem. 2014, 10, 2715–2723, doi:10.3762/bjoc.10.286

PDF

Graphical Abstract

Figure 1: a) ¹H high resolution NMR spectrum of IP dissolved in D₂O, b) ¹H HRMAS NMR spectrum of IP-CDNSEDTA ...

Jump to Figure 1

Figure 2: Normalized NMR signal decay I(q,t_d) as function of q² for a) IP in D₂O solution, b) IP in CDNSEDTA ...

Jump to Figure 2

Figure 3: log–log plot of MSD vs diffusion time t_d for: a) D₂O solution, b) CDNSEDTA (1:4) and CDNSEDTA (1:8)....

Jump to Figure 3

Figure 4: TEM images of: a) CDNSEDTA (1:4) and b) CDNSEDTA (1:8).

Jump to Figure 4

Figure 5: Effect of the increasing amount of crosslinker with respect to CD (expressed here as mol of crossli...

Jump to Figure 5

Scheme 1: Schematic representation of the nanosponge synthesis. Acronyms: β-CD: β-cyclodextrin; EDTAn: anhydr...

Jump to Scheme 1

Album

Full Research Paper

Published 19 Nov 2014

Full text

Synthesis and characterization of a hyper-branched water-soluble β-cyclodextrin polymer

Francesco Trotta,
Fabrizio Caldera,
Roberta Cavalli,
Andrea Mele,
Carlo Punta,
Lucio Melone,
Franca Castiglione,
Barbara Rossi,
Monica Ferro,
Vincenza Crupi,
Domenico Majolino,
Valentina Venuti and
Dominique Scalarone

Beilstein J. Org. Chem. 2014, 10, 2586–2593, doi:10.3762/bjoc.10.271

PDF

Graphical Abstract

Figure 1: FTIR spectra of branched β-CD polymer (a), cross-linked β-CD nanosponge (b) and pyromellitic dianhy...

Jump to Figure 1

Figure 2: SEC curves of the β-CD-based polymer before (solid line) and after ultrafiltration with cut-off siz...

Jump to Figure 2

Figure 3: Thermogravimetric curves of the β-CD-based polymer after ultrafiltration with cut-off size of 3000 ...

Jump to Figure 3

Figure 4: Raman (a) and FTIR–ATR (b) spectra of the branched β-CD-based polymer in the wavenumber range of 15...

Jump to Figure 4

Figure 5: Ratio between the intensity of the bands assigned to ester groups (I_CO1) and to the free carboxylic...

Jump to Figure 5

Figure 6: NMR spectra of fluorescein in D₂O solution (a) and in the presence of the hyper-branched β-CD polym...

Jump to Figure 6

Figure 7: UV–vis spectrum of fluorescein with increasing amounts of hyper-branched β-CD polymer. pH range: 8....

Jump to Figure 7

Album

Full Research Paper

Published 06 Nov 2014

Full text

Metal-free aerobic oxidations mediated by N-hydroxyphthalimide. A concise review

Lucio Melone and
Carlo Punta

Beilstein J. Org. Chem. 2013, 9, 1296–1310, doi:10.3762/bjoc.9.146

PDF

Graphical Abstract

Scheme 1: Catalytic role of NHPI in the selective oxidation of organic substrates.

Jump to Scheme 1

Scheme 2: Radical addition of aldehydes and analogues to alkenes.

Jump to Scheme 2

Scheme 3: NHPI/AIBN-promoted aerobic oxidation of 2,6-diisopropylnaphthalene.

Jump to Scheme 3

Scheme 4: NHPI/AIBN-promoted aerobic oxidation of CHB.

Jump to Scheme 4

Scheme 5: NMBHA/MeOAMVN promoted aerobic oxidation of PUFA.

Jump to Scheme 5

Scheme 6: Alkene dioxygenation by means of N-aryl hydroxamic acid and O₂.

Jump to Scheme 6

Scheme 7: NHPI-catalyzed reaction of adamantane under NO atmosphere.

Jump to Scheme 7

Scheme 8: Nitration of alkanes and alkyl side-chains of aromatics.

Jump to Scheme 8

Scheme 9: Radical mechanism for the nitration of alkanes catalyzed by NHPI.

Jump to Scheme 9

Scheme 10: Benzyl alcohols from alkylbenzenes.

Jump to Scheme 10

Scheme 11: Catalytic cycle of laccase-NHDs mediator oxidizing system.

Jump to Scheme 11

Figure 1: Mediators of laccase.

Jump to Figure 1

Scheme 12: DADCAQ/NHPI-mediated aerobic oxidation mechanism.

Jump to Scheme 12

Scheme 13: DADCAQ/TCNHPI mediated aerobic oxidation of ethylbenzene.

Jump to Scheme 13

Scheme 14: NHPI/xanthone/TMAC mediated aerobic oxidation of ethylbenzene.

Jump to Scheme 14

Scheme 15: NHPI/AQ-mediated aerobic oxidation of α-isophorone.

Jump to Scheme 15

Scheme 16: NHPI/AQ-mediated oxidation of cellulose fibers by NaClO/NaBr system.

Jump to Scheme 16

Scheme 17: NHPI/AQ mediated aerobic oxidation of cellulose fibers.

Jump to Scheme 17

Scheme 18: Molecule-induced homolysis by peracids.

Jump to Scheme 18

Scheme 19: Molecule-induced homolysis of NHPI/m- chloroperbenzoic acid system.

Jump to Scheme 19

Scheme 20: Proposed mechanism for the NHPI/CH₃CHO/O₂-mediated epoxidation.

Jump to Scheme 20

Scheme 21: NHPI/CH₃CHO-mediated aerobic oxidation of alkyl aromatics.

Jump to Scheme 21

Scheme 22: Light-induced generation of PINO from N-alkoxyphthalimides.

Jump to Scheme 22

Scheme 23: Visible-light/g-C₃N₄ induced metal-free oxidation of allylic substrates.

Jump to Scheme 23

Scheme 24: NHPI/o-phenanthroline-mediated organocatalytic system.

Jump to Scheme 24

Scheme 25: NHPI/DMG-mediated organocatalytic system.

Jump to Scheme 25

Scheme 26: NHPI catalyzed oxidative cleavage of C=C bonds.

Jump to Scheme 26

Scheme 27: Synthesis of hydrazine derivatives.

Jump to Scheme 27

Album

Review

Published 02 Jul 2013

Full text

Other Beilstein-Institut Open Science Activities

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