/ 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

1 article(s) from Mielgo, Antonia

1H-Imidazol-4(5H)-ones and thiazol-4(5H)-ones as emerging pronucleophiles in asymmetric catalysis

Antonia Mielgo and
Claudio Palomo

Beilstein J. Org. Chem. 2016, 12, 918–936, doi:10.3762/bjoc.12.90

PDF

Graphical Abstract

Figure 1: Some α-substituted heterocycles for asymmetric catalysis, their reactivity patterns against enoliza...

Jump to Figure 1

Figure 2: 1H-Imidazol-4(5H)-ones 1 and thiazol-4(5H)-ones 2.

Jump to Figure 2

Scheme 1: a) Synthesis of 2-thio-1H-imidazol-4(5H)-ones [55] and b) preparation of the starting thiohydantoins [59].

Jump to Scheme 1

Scheme 2: Selected examples of the Michael addition of 2-thio-1H-imidazol-4(5H)-ones to nitroalkenes [55]. ^aReact...

Jump to Scheme 2

Scheme 3: Michael addition of thiohydantoins to nitrostyrene assisted by Et₃N and catalysts C1 and C3. ^aAbsol...

Jump to Scheme 3

Scheme 4: Elaboration of the Michael adducts coming from the Michael addition to nitroalkenes [55].

Jump to Scheme 4

Figure 3: Proposed model for the Michael addition of 1H-imidazol4-(5H)-ones and selected ¹H NMR data which su...

Jump to Figure 3

Scheme 5: Michael addition 2-thio-1H-imidazol-4(5H)-ones to the α-silyloxyenone 29 [55].

Jump to Scheme 5

Scheme 6: Elaboration of the Michael adducts coming from the Michael addition to nitroolefins [55].

Jump to Scheme 6

Scheme 7: Rhodanines in asymmetric catalytic reactions: a) Reaction with rhodanines of type 44 [78-80]; b) reactions...

Jump to Scheme 7

Scheme 8: Michael addition of thiazol-4(5H)-ones to nitroolefins promoted by the ureidopeptide-like bifunctio...

Jump to Scheme 8

Figure 4: Ureidopeptide-like Brønsted bases: catalyst design. a) Previous known design. b) Proposed new desig...

Jump to Figure 4

Scheme 9: Ureidopeptide-like Brønsted base bifunctional catalyst preparation. NMM = N-methylmorpholine, THF =...

Jump to Scheme 9

Scheme 10: Selected examples of the Michael addition of thiazolones to different nitroolefins promoted by cata...

Jump to Scheme 10

Scheme 11: Elaboration of the Michael adducts to α,α-disubstituted α-mercaptocarboxylic acid derivatives [85].

Jump to Scheme 11

Scheme 12: Effect of the nitrogen atom at the aromatic substituent of the thiazolone on yield and stereoselect...

Jump to Scheme 12

Scheme 13: Michael addition reaction of thiazol-4(5H)ones 74 to α’-silyloxyenone 29 [73].

Jump to Scheme 13

Scheme 14: Elaboration of the thiazolone Michael adducts [73].

Jump to Scheme 14

Scheme 15: Enantioselective γ-addition of oxazol-4(5H)-ones and thiazol-4(5H)-ones to allenoates promoted by C6...

Jump to Scheme 15

Scheme 16: Enantioselective γ-addition of thiazol-4(5H)-ones and oxazol-4(5H)-ones to alkynoate 83 promoted by ...

Jump to Scheme 16

Scheme 17: Proposed mechanism for the C6-catalyzed γ-addition of thiazol-4(5H)-one to allenoates. Adapted from ...

Jump to Scheme 17

Scheme 18: Catalytic enantioselective α-amination of thiazolones promoted by ureidopeptide like catalysts C5 a...

Jump to Scheme 18

Scheme 19: Iridium-catalized asymmetric allyllation of substituted oxazol-4(5H)-ones and thiazol-4(5H)-ones pr...

Jump to Scheme 19

Album

Review

Published 09 May 2016

Full text

Other Beilstein-Institut Open Science Activities

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