/ 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 Almendros, Pedro

Gold-catalyzed oxycyclization of allenic carbamates: expeditious synthesis of 1,3-oxazin-2-ones

Benito Alcaide,
Pedro Almendros,
M. Teresa Quirós and
Israel Fernández

Beilstein J. Org. Chem. 2013, 9, 818–826, doi:10.3762/bjoc.9.93

PDF

Graphical Abstract

Scheme 1: Preparation of allenic carbamates 2a–j. Reagents and conditions: (i) Propargylamine, MgSO₄, CH₂Cl₂,...

Jump to Scheme 1

Scheme 2: Controlled oxycyclization reactions of allenic carbamates 2 to 1,3-oxazinan-2-ones 3 and 1,3-oxazin...

Jump to Scheme 2

Scheme 3: Possible explanation for the gold-catalyzed isomerization reaction of 1,3-oxazinan-2-one 3a into 1,...

Jump to Scheme 3

Scheme 4: Mechanistic explanation for the gold-catalyzed oxycyclization reactions of allenic carbamates 2 int...

Jump to Scheme 4

Figure 1: Computed reaction profile for the reaction of AuPMe₃⁺ and 1M. Numbers indicate the corresponding PC...

Jump to Figure 1

Album

Supp Info

Full Research Paper

Published 26 Apr 2013

Full text

Gold-catalyzed heterocyclizations in alkynyl- and allenyl-β-lactams

Benito Alcaide and
Pedro Almendros

Beilstein J. Org. Chem. 2011, 7, 622–630, doi:10.3762/bjoc.7.73

PDF

Graphical Abstract

Scheme 1: Gold-catalyzed cyclization of 4-allenyl-2-azetidinones for the preparation of bicyclic β-lactams.

Jump to Scheme 1

Scheme 2: Possible catalytic cycle for the gold-catalyzed cyclization of 4-allenyl-2-azetidinones.

Jump to Scheme 2

Scheme 3: Gold- and iron-catalyzed chemodivergent cyclization of ene-allenols for the preparation of oxacycli...

Jump to Scheme 3

Scheme 4: Gold-catalyzed cyclization of hydroxyallenes for the preparation of five-membered oxacyclic β-lacta...

Jump to Scheme 4

Figure 1: Free energy profile [kcal mol^–1] for the transformation of γ-allenol I into the tetrahydrofuran typ...

Jump to Figure 1

Scheme 5: Possible catalytic cycle for the gold-catalyzed cyclization of hydroxyallenes.

Jump to Scheme 5

Scheme 6: Gold-catalyzed cyclization of MOM-protected α-hydroxyallenes for the preparation of five-membered o...

Jump to Scheme 6

Scheme 7: Gold-catalyzed cyclization of MOM-protected γ-hydroxyallenes for the preparation of seven-membered ...

Jump to Scheme 7

Scheme 8: Possible catalytic cycle for the gold-catalyzed cyclization of MOM protected γ-allenol derivatives....

Jump to Scheme 8

Scheme 9: Au(III)-catalyzed heterocyclization reaction of MOM protected γ-allenol derivative 14a.

Jump to Scheme 9

Scheme 10: Precious metal-catalyzed formation of benzo-fused pyrrolizinones from N-(2-alkynylphenyl)-β-lactams....

Jump to Scheme 10

Scheme 11: Gold-catalyzed formation of 5,6-dihydro-8H-indolizin-7-ones from N-(pent-2-en-4-ynyl)-β-lactams.

Jump to Scheme 11

Scheme 12: Gold-catalyzed formation of non-fused tetrahydrofuryl-β-lactam hemiacetals from 2-azetidinone-tethe...

Jump to Scheme 12

Scheme 13: Gold-catalyzed formation of spiro tetrahydrofuryl-β-lactam hemiacetals from 2-azetidinone-tethered ...

Jump to Scheme 13

Scheme 14: Gold-catalyzed formation of fused tetrahydrofuryl-β-lactam hemiacetals from 2-azetidinone-tethered ...

Jump to Scheme 14

Scheme 15: Possible catalytic cycle for the gold-catalyzed cyclization of MOM protected alkynol derivatives.

Jump to Scheme 15

Scheme 16: Gold/Brønsted acid co-catalyzed formation of bridged β-lactam acetals from 2-azetidinone-tethered a...

Jump to Scheme 16

Album

Review

Published 17 May 2011

Full text

Other Beilstein-Institut Open Science Activities

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