Studies on Thermal Reactivity of β-(1,2-Allenyl)butenolides and 2-Allyl-3-allenylcyclohex-2-enones
作者:Zhenhua Gu、Shengming Ma
DOI:10.1002/chem.200701171
日期:2008.3.7
A series of thermal pericyclic reactions of beta-allenylfuranones have been studied. It was observed that beta-allenylfuranones would undergo 1,5-hydrogen shift to afford a new type of trienes upon heating. Due to their high reactivity, these trienes would undergo subsequent pericyclic reactions based on the nature of the substituent group R: When R is an alkyl group, the intermediate 4a or 4b would
Palladium(II)-Catalyzed Highly Stereoselective Sandwich-Type Triple Cyclization Reaction of 1,5-Bisallenes and 2,3-Allenoic Acids
作者:Xiongdong Lian、Shengming Ma
DOI:10.1002/chem.201000992
日期:2010.7.19
Triple‐decker sandwich: A sandwich‐type triplecyclization of two molecules of 2,3‐allenoic acid and one molecule of 1,5‐bisallene in the presence of a palladium catalyst with excellent stereoselectivity has been developed. The diallyl‐substituted cis products may easily be transformed to fused tetracyclic compounds with a 12‐membered ring (see scheme). Based on the result of optically active 2,3‐allenoic
An Efficient Approach to Substituted 1,5,7,8,9-Pentahydrocyclopenta[<i>h</i>]-2-Benzopyran-3-one Derivatives by a Palladium-Catalyzed Tandem Reaction of 2,7-Alkadiynylic Carbonates with 2,3-Allenoic Acids
作者:Xiongdong Lian、Shengming Ma
DOI:10.1002/anie.200803424
日期:2008.10.13
A Novel Three-Component Reaction of Allenoates, Isocyanides, and Carboxylic Acids: Facile Synthesis of Highly Substituted Acryl Imide Derivatives
作者:Xian Huang、Feng Sha
DOI:10.1021/jo702382h
日期:2008.2.1
A novel synthesis of highly substituted acryl imide derivatives by the three-component reaction of allenoates, isocyanides, and carboxylicacids was reported, and the intramolecular cyclization reaction of allenoic acids with isocyanides was also described.
Palladium-Catalyzed Dehydrogenative Carbonylative Esterification of Allenoic Acids for the Synthesis of γ-Butyrolactone Derivatives
作者:Bolin Wang、Mingzhe Ren、Nasir Iqbal、Xin Mu、Jan-E. Bäckvall、Bin Yang
DOI:10.1021/acs.orglett.4c00572
日期:2024.3.29
A highly efficient dehydrogenative carbonylative esterification of allenoic acids using Pd-catalysis was developed, providing a novel approach to synthesizing esterified γ-butyrolactone derivatives with consistently good to excellent results demonstrated across over 50 examples. Additionally, we used a heterogeneous catalyst known as Pd-AmP-MCF and harnessed biomimetic-aerobic-oxidation conditions