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.
Beilstein J. Org. Chem. 2024, 20, 1773–1784, doi:10.3762/bjoc.20.156
Graphical Abstract
Scheme 1: The use of α,β-unsaturated aldehydes in the Ugi reaction.
Scheme 2: Comparison of isocyanide conversion conditions.
Figure 1: Azomethines based on ethyl 4-acetyl-3,5-dimethyl-1H-pyrrole-2-carboxylate and 4-[(E)-1-chloro-3-oxo...
Figure 2: Molecular structure of ethyl (Z)-4-(3-(N-(4-bromophenyl)-2-chloroacetamido)-4-(tert-butylamino)-1-c...
Scheme 3: Hydrolysis of Ugi bisamide 5d in the presence of HCl. Conditions: (A) 5 equiv HCl, MeOH, 80 °C, 3 h...
Figure 3: Molecular structure of ethyl (E)-4-(4-(tert-butylamino)-3,4-dioxobut-1-en-1-yl)-3,5-dimethyl-1H-pyr...
Figure 4: Molecular structure of ethyl 4-(3-(N-(4-bromophenyl)-2-chloroacetamido)-4-(tert-butylamino)-4-oxobu...
Scheme 4: The Ugi-4CR with the participation of p-anisidine and benzyl isocyanide.
Scheme 5: Successful attempt at tandem one-pot coupling of the Ugi-4CR reaction and post-transformation of th...
Scheme 6: Plausible transformation sequence of the formation of amides 10 and ketobisamides 12.
Beilstein J. Org. Chem. 2023, 19, 727–735, doi:10.3762/bjoc.19.53
Scheme 1: Diversity of structures synthesized by combining IMCR’s.
Figure 1: Drugs possessing imidazo[1,2-a]pyridine unit.
Figure 2: Drugs possessing peptide unit.
Scheme 2: Diversity of GBB reaction products as precursors for Ugi reaction.
Scheme 3: Synthesis of new acids containing a substituted imidazo[1,2-a]pyridine fragment.
Scheme 4: Synthesis of new peptidomimetics containing a substituted imidazo[1,2-a]pyridine fragment.
Scheme 5: Synthesis and reactivity of new acids containing a substituted imidazo[1,2-a]pyridine fragment with...
Beilstein J. Org. Chem. 2019, 15, 1281–1288, doi:10.3762/bjoc.15.126
Scheme 1: An overview of heterocyclic acids used in the Ugi reaction.
Scheme 2: Synthesis of pyrazolopyridine carboxylic acids 4 [45] and 7 [45] in Doebner-type reaction.
Figure 1: Molecular structure of N-(2-(tert-butylamino)-1-(4-chlorophenyl)-2-oxoethyl)-6-(4-methoxyphenyl)-3-...