Catalytic asymmetric synthesis of butenolides and butyrolactones

B Mao, M Fañanás-Mastral, BL Feringa - Chemical reviews, 2017 - ACS Publications
γ-Butenolides, γ-butyrolactones, and derivatives, especially in enantiomerically pure form,
constitute the structural core of numerous natural products which display an impressive …

New developments of the principle of vinylogy as applied to π-extended enolate-type donor systems

C Curti, L Battistini, A Sartori, F Zanardi - Chemical reviews, 2020 - ACS Publications
The principle of vinylogy states that the electronic effects of a functional group in a molecule
are possibly transmitted to a distal position through interposed conjugated multiple bonds …

Direct asymmetric vinylogous aldol reaction of allyl ketones with isatins: divergent synthesis of 3-hydroxy-2-oxindole derivatives.

B Zhu, W Zhang, R Lee, Z Han, W Yang… - Angewandte …, 2013 - search.ebscohost.com
3-Hydroxy-2-oxindole derivatives, which contain a quaternary stereogenic center at the 3-
position, are a family of structurally diverse natural or nonnatural products with interesting …

Deconjugated butenolide: a versatile building block for asymmetric catalysis

AR Choudhury, S Mukherjee - Chemical Society Reviews, 2020 - pubs.rsc.org
The wide abundance of γ-lactones in natural products and bioactive targets calls for suitable
building blocks for their enantioselective synthesis. β, γ-Unsaturated γ-butenolides …

Regioselective α‐Addition of Deconjugated Butenolides: Enantioselective Synthesis of Dihydrocoumarins

B Wu, Z Yu, X Gao, Y Lan… - Angewandte Chemie …, 2017 - Wiley Online Library
The enantioselective α‐addition of deconjugated butenolides has rarely been exploited, in
contrast to the well‐studied γ‐addition of deconjugated butenolides. In this study, an …

Beyond classical reactivity patterns: Shifting from 1, 4-to 1, 6-additions in regio-and enantioselective organocatalyzed vinylogous reactions of olefinic lactones with …

L Dell'Amico, Ł Albrecht, T Naicker… - Journal of the …, 2013 - ACS Publications
Organocatalysis is shown to expand the classical reactivity pattern for conjugate addition
reactions. It is demonstrated that the site selectivity can be extended from 1, 4-to 1, 6 …

Angelica Lactones: From Biomass‐Derived Platform Chemicals to Value‐Added Products

CGS Lima, JL Monteiro, T de Melo Lima… - …, 2018 - Wiley Online Library
The upgrading of biomass‐derived compounds has arisen in recent years as a very
promising research field in both academia and industry. In this sense, a lot of new processes …

Diastereodivergent organocatalytic asymmetric vinylogous Michael reactions

X Li, M Lu, Y Dong, W Wu, Q Qian, J Ye… - Nature …, 2014 - nature.com
One of the major challenges of modern asymmetric catalysis is the ability to selectively
control the formation of all diastereoisomers of reaction products possessing multiple …

Visible Light‐Driven Cooperative DPZ and Chiral Hydrogen‐Bonding Catalysis

X Lv, H Xu, Y Yin, X Zhao… - Chinese Journal of …, 2020 - Wiley Online Library
What is the most favorite and original chemistry developed in your research group? The
visible light photosensitizer DPZ. How did you get into this specific field? Could you please …

Remarkable influence of secondary catalyst site on enantioselective desymmetrization of cyclopentenedione

MS Manna, S Mukherjee - Chemical Science, 2014 - pubs.rsc.org
An efficient, robust and highly enantioselective catalytic desymmetrization of 2, 2-
disubstituted cyclopentene-1, 3-diones is developed via direct vinylogous nucleophilic …