Taming secondary benzylic cations in catalytic asymmetric SN1 reactions

VK Singh, C Zhu, CK De, M Leutzsch, L Baldinelli… - Science, 2023 - science.org
Benzylic stereogenic centers are ubiquitous in natural products and pharmaceuticals. A
potentially general, though challenging, approach toward their selective creation would be …

Visible-light-induced photoacid catalysis: application in glycosylation with O-glycosyl trichloroacetimidates

G Zhao, J Li, T Wang - Chemical Communications, 2021 - pubs.rsc.org
The development of visible-light-induced photoacid catalyzed glycosylation is reported. The
eosin Y and PhSSPh catalyst system is applied to realize glycosylation with different …

Stereoselective Syntheses of Polyunsaturated Fatty Acids, 13-(S)-HODE and 15-(S)-HETE

M Shin, Y Byun - The Journal of Organic Chemistry, 2024 - ACS Publications
Polyunsaturated fatty acids and their metabolites have been reported in which their pathway
has potential for the modulation of cancer cell growth. 13-(S)-HODE and 15-(S)-HETE, both …

Gold (III) Catalyzed Overman Rearrangements: Controlling Steric Interactions using Pincer‐Type Ligands

S Engbers, EA Trifonova, KM van Der Geest… - …, 2022 - Wiley Online Library
Spatial control of reactivity is intrinsically difficult in gold catalysis due to the linear
coordination mode of Au (I) and the commonly flat ligands employed for Au (III) complexes …

[HTML][HTML] Synthesis of reactive trichloroacetimidates using polymer supported DBU catalysis

CM Pedersen - Tetrahedron Letters, 2024 - Elsevier
Trichloroacetimidates are commonly synthesized to be used as alkylating or glycosylating
reagents. They are synthesized from an alcohol and trichloroacetonitrile and DBU is the …

Stereoselective Total Synthesis of Pyranicin and 4‐Epi‐Pyranicin from Carbohydrate Precursors

P Ambati, A Gupta, A Bandi… - European Journal of …, 2024 - Wiley Online Library
Herein, we describe a simple and efficient pathway for the total synthesis of pyranicin and 4‐
epi‐pyranicin by utilizing carbohydrates as chiral raw materials for the first time. The general …

Total Synthesis and Biological Evaluation of Seiricuprolide and Pestalotioprolide B

P Sanphetchaloemchok, N Saikachain… - European Journal of …, 2023 - Wiley Online Library
The first total syntheses of seiricuprolide and pestalotioprolide B, rare 14‐membered α, β‐
unsaturated macrolides embedding a chiral epoxide motif, were achieved in 17 steps with …

Total Synthesis of (–)‐Cordycicadin D and 3, 4‐trans‐Cordycicadins A and B: Entry to the 3, 4‐trans‐Fused Cordycicadin Framework

MA Brimble, LR Hunt, PS Grant, GK Shimokura… - Angewandte … - Wiley Online Library
Lost in post‐translation. Cordycicadins A–D are four C20 polyketides, all containing ag‐
lactone fused to a 10‐membered lactone. The proposed biosynthetic pathway for the …

Taming Benzylic Cations via Asymmetric Counteranion Directed

VK Singh - 2024 - kups.ub.uni-koeln.de
Reactions that proceed via carbocations play a big role in various chemical transformations
for over a century. Their applications range from drug discovery, commercial compounds to …

Studien zur Totalsynthese des trans-neo-Clerodans Salvinorin A

M Halang - 2023 - tobias-lib.ub.uni-tuebingen.de
Salvinorin A ist ein psychotroper Naturstoff, welcher 1982 erstmals aus den getrockneten
Blättern des Azteken-Salbeis (Salvia divinorum) extrahiert wurde. Er besitzt eine geringe …