para‐Quinone Methides as Acceptors in 1,6‐Nucleophilic Conjugate Addition Reactions for the Synthesis of Structurally Diverse Molecules

CGS Lima, FP Pauli, DCS Costa… - European Journal of …, 2020 - Wiley Online Library
para‐Quinone methides (p‐QMs) are naturally occurring molecules that have been finding
increasing synthetic applications in the last few years. The presence of two electronically …

Advances in the catalytic synthesis of triarylmethanes (TRAMs)

R Kshatriya, VP Jejurkar, S Saha - European Journal of …, 2019 - Wiley Online Library
The last couple of decades has witnessed an incredible development in the progress of
catalytic creation of triarylmethane (TRAM) motif. The broad‐spectrum applications of …

Catalytic Asymmetric Conjugate Addition of Indoles to para-Quinone Methide Derivatives

JR Wang, XL Jiang, QQ Hang, S Zhang… - The Journal of …, 2019 - ACS Publications
A catalytic asymmetric conjugate addition of indoles to o-hydroxyphenyl substituted p-
quinone methides has been established in the presence of chiral phosphoric acid, which …

Asymmetric Phosphine‐Catalyzed [4+1] Annulations of o‐Quinone Methides with MBH Carbonates

T Zhou, T Xia, Z Liu, L Liu… - Advanced Synthesis & …, 2018 - Wiley Online Library
Chiral dihydrobenzofuran units are frequently present in molecules with significant
biological and pharmaceutical activities. Herein, we present the first enantioselective formal …

Catalyst-Enabled Chemodivergent Construction of Alkynyl- and Vinyl-Substituted Diarylmethanes from p-Quinone Methides and Alkynes

Z Liu, H Xu, T Yao, J Zhang, L Liu - Organic letters, 2019 - ACS Publications
Here, a catalyst-controlled chemodivergent 1, 6-addition of p-quinone methides with alkynes
was developed, affording diverse alkynyl-and vinyl-substituted diarymethanes. In this …

Asymmetric Cycloaddition of ortho-Hydroxyphenyl-Substituted para-Quinone Methides and Enamides Catalyzed by Chiral Phosphoric Acid

GH Yang, Q Zhao, ZP Zhang, HL Zheng… - The Journal of …, 2019 - ACS Publications
A BINOL-based chiral phosphoric acid was employed as an efficient catalyst in
enantioselective cycloaddition of ortho-hydroxyphenyl-substituted para-quinone methides …

Phosphines: preparation, reactivity and applications

EI Musina, AS Balueva, AA Karasik - Organophosphorus …, 2019 - books.google.com
This chapter covers the literature published during 2017 relating to the synthesis, the
reactivity and the application of phosphines, excluding the chemistry of their metal …

CuH-Catalyzed Asymmetric 1,6-Conjugate Reduction of p-Quinone Methides: Enantioselective Synthesis of Triarylmethanes and 1,1,2-Triarylethanes

T Pan, P Shi, B Chen, DG Zhou, YL Zeng, WD Chu… - Organic …, 2019 - ACS Publications
The first copper hydride (CuH)-catalyzed asymmetric 1, 6-conjugate reduction of p-quinone
methides is reported. This protocol provides a new method to access a variety of …

Phosphine-catalyzed diastereo-and enantioselective Michael addition of β-carbonyl esters to β-trifluoromethyl and β-ester enones: enhanced reactivity by inorganic …

B Huang, C Li, H Wang, C Wang, L Liu, J Zhang - Organic Letters, 2017 - ACS Publications
A novel chiral biamide–phosphine multifunctional catalyst has been developed that
mediates the asymmetric intermolecular Michael addition of β-carbonyl esters to β …

[HTML][HTML] Organocatalytic enantioselective conjugate addition of 2-naphthols to ortho-hydroxyphenyl substituted para-quinone methides: access to unsymmetrical …

Y Cheng, Z Fang, Y Jia, Z Lu, W Li, P Li - RSC advances, 2019 - pubs.rsc.org
The enantioselective conjugate addition of 2-naphthols to ortho-hydroxyphenyl substituted
para-quinone methides has been achieved with the aid of a chiral phosphoric acid …