<HashMap><database>biostudies-literature</database><scores/><additional><omics_type>Unknown</omics_type><volume>13(7)</volume><submitter>Qin X</submitter><pubmed_abstract>Herein, the aldol/Michael cascade reaction on the β,γ-positions of α,β-unsaturated ketones with ketoamides to construct bicyclic lactams &lt;i>via&lt;/i> DBU catalysis has been developed. The substrates were well-tolerated with high regio- and diastereoselectivities in moderate to good yields (32 examples). The control experiments revealed that the hydrogen of the amide was the key factor.</pubmed_abstract><journal>RSC advances</journal><pagination>4782-4786</pagination><full_dataset_link>https://www.ebi.ac.uk/biostudies/studies/S-EPMC9901288</full_dataset_link><repository>biostudies-literature</repository><pubmed_title>Highly regioselective synthesis of lactams &lt;i>via&lt;/i> cascade reaction of α,β-unsaturated ketones, ketoamides, and DBU as a catalyst.</pubmed_title><pmcid>PMC9901288</pmcid><pubmed_authors>Zhang W</pubmed_authors><pubmed_authors>Liu H</pubmed_authors><pubmed_authors>Yang Y</pubmed_authors><pubmed_authors>Zhang J</pubmed_authors><pubmed_authors>Qin X</pubmed_authors><pubmed_authors>Wang ZY</pubmed_authors><pubmed_authors>Song Y</pubmed_authors></additional><is_claimable>false</is_claimable><name>Highly regioselective synthesis of lactams &lt;i>via&lt;/i> cascade reaction of α,β-unsaturated ketones, ketoamides, and DBU as a catalyst.</name><description>Herein, the aldol/Michael cascade reaction on the β,γ-positions of α,β-unsaturated ketones with ketoamides to construct bicyclic lactams &lt;i>via&lt;/i> DBU catalysis has been developed. The substrates were well-tolerated with high regio- and diastereoselectivities in moderate to good yields (32 examples). The control experiments revealed that the hydrogen of the amide was the key factor.</description><dates><release>2023-01-01T00:00:00Z</release><publication>2023 Jan</publication><modification>2025-04-18T21:16:55.102Z</modification><creation>2025-04-07T09:17:05.838Z</creation></dates><accession>S-EPMC9901288</accession><cross_references><pubmed>36760281</pubmed><doi>10.1039/d2ra07117g</doi></cross_references></HashMap>