Sequential Ruthenium Catalysis for Olefin Isomerization and Oxidation: Application to the Synthesis of Unusual Amino Acids
作者:Marc Liniger、Yiyang Liu、Brian M. Stoltz
DOI:10.1021/jacs.7b08496
日期:2017.10.4
How can you use a ruthenium isomerization catalyst twice? A ruthenium-catalyzed sequence for the formal two-carbon scission of allyl groups to carboxylic acids has been developed. The reaction includes an initial isomerization step using commercially available ruthenium catalysts followed by in situ transformation of the complex to a metal-oxo species, which is capable of catalyzing subsequent oxidation
Enantioselective construction of quaternary N-heterocycles by palladium-catalysed decarboxylative allylic alkylation of lactams
作者:Douglas C. Behenna、Yiyang Liu、Taiga Yurino、Jimin Kim、David E. White、Scott C. Virgil、Brian M. Stoltz
DOI:10.1038/nchem.1222
日期:2012.2
The enantioselectivesynthesis of nitrogen-containingheterocycles (N-heterocycles) represents a substantial chemical research effort and resonates across numerous disciplines, including the totalsynthesis of natural products and medicinal chemistry. In this Article, we describe the highly enantioselective palladium-catalysed decarboxylative allylic alkylation of readily available lactams to form
Formal total syntheses of classic natural product target molecules via palladium-catalyzed enantioselective alkylation
作者:Yiyang Liu、Marc Liniger、Ryan M McFadden、Jenny L Roizen、Jacquie Malette、Corey M Reeves、Douglas C Behenna、Masaki Seto、Jimin Kim、Justin T Mohr、Scott C Virgil、Brian M Stoltz
DOI:10.3762/bjoc.10.261
日期:——
synthetic elaboration enables the formal totalsyntheses of a number of "classic" natural product target molecules. This publication highlights recent methods for setting quaternary and tetrasubstituted tertiary carbon stereocenters to address the synthetic hurdles encountered over many decades across multiple compound classes spanning carbohydrate derivatives, terpenes, and alkaloids. These enantioselective
Total Syntheses of
<i>rac</i>
‐ and (+)‐Goniomitine
作者:Eunjoon Park、Cheol‐Hong Cheon
DOI:10.1002/adsc.201900801
日期:2019.11.5
Concise totalsyntheses of rac‐ and (+)‐goniomitine were developed. The cyanide‐catalyzed imino‐Stetter reaction of an aldimine, derived from ethyl 2‐aminocinnamate and either rac‐ or (S)‐α,β‐unsaturated aldehyde bearing a δ‐valerolactam at the β‐position, provided rac‐ or (S)‐indole‐3‐acetate carrying an α‐vinyl‐δ‐valerolactam scaffold at the 2‐position, respectively. Subsequent saturation of the