HFIP in organic synthesis

HF Motiwala, AM Armaly, JG Cacioppo… - Chemical …, 2022 - ACS Publications
1, 1, 1, 3, 3, 3-Hexafluoroisopropanol (HFIP) is a polar, strongly hydrogen bond-donating
solvent that has found numerous uses in organic synthesis due to its ability to stabilize ionic …

Additive effects on asymmetric catalysis

L Hong, W Sun, D Yang, G Li, R Wang - Chemical Reviews, 2016 - ACS Publications
This review highlights a number of additives that can be used to make asymmetric reactions
perfect. Without changing other reaction conditions, simply adding additives can lead to …

Cycloaddition reactions of enoldiazo compounds

QQ Cheng, Y Deng, M Lankelma… - Chemical Society Reviews, 2017 - pubs.rsc.org
Enoldiazo esters and amides have proven to be versatile reagents for cycloaddition
reactions that allow highly efficient construction of various carbocycles and heterocycles …

Michael addition catalyzed by chiral secondary amine phosphoramide using fluorinated silyl enol ethers: formation of quaternary carbon stereocenters

JS Yu, FM Liao, WM Gao, K Liao… - Angewandte Chemie …, 2015 - Wiley Online Library
A chiral secondary amine phosphoramide was developed and identified as a powerful
catalyst for the Mukaiyama–Michael addition of fluorinated enol silyl ethers to …

Catalyst-directed divergent catalytic approaches to expand structural and functional scaffold diversity via metallo-enolcarbene intermediates

K Dong, H Zheng, Y Su, A Humeidi, H Arman, X Xu… - ACS …, 2021 - ACS Publications
Catalyst-directed access to divergent products involving three different metals that
exclusively form three different products from the same reactants is reported. Each catalyst …

Highly enantioselective synthesis of 2, 3-dihydroquinazolinones through intramolecular amidation of imines

M Prakash, V Kesavan - Organic letters, 2012 - ACS Publications
Highly Enantioselective Synthesis of 2,3-Dihydroquinazolinones through Intramolecular
Amidation of Imines | Organic Letters ACS ACS Publications C&EN CAS Find my institution Log …

Gold(I)-Catalyzed Reactions between 2-(1-Alkynyl)-2-alken-1-ones and Vinyldiazo Ketones for Divergent Synthesis of Nonsymmetric Heteroaryl-Substituted Triarylmethanes: N- …

RD Kardile, RS Liu - Organic Letters, 2020 - ACS Publications
Gold-catalyzed synthesis of nonsymmetrical heteroaryl-substituted triarylmethanes using 2-
(1-alkynyl)-2-alken-1-ones and vinyldiazo ketones is described. In this catalytic sequence …

Highly Selective Catalyst-Dependent Competitive 1, 2-C→ C,-O→ C, and-N→ C Migrations from β-Methylene-β-silyloxy-β-amido-α-diazoacetates

X Xu, Y Qian, PY Zavalij, MP Doyle - Journal of the American …, 2013 - ACS Publications
Transition-metal catalysts direct 1, 2-C→ C,-O→ C, and-N→ C migrations from β-methylene-
β-silyloxy-β-amido-α-diazoacetates with high selectivity. The key to achieving this unique …

Strategy for the synthesis of pyridazine heterocycles and their derivatives

H Bel Abed, O Mammoliti, O Bande… - The Journal Of …, 2013 - ACS Publications
The first synthesis of novel fused pyridazines has been realized starting from 1, 3-diketones
involving a Diaza–Wittig reaction as a key step. A convenient strategy was elaborated to …

Nitrogen group retaining reaction in the transformation of diazo compounds

D Qiu, M Qiu, R Ma, Y Zhang, J Wang - Acta Chimica Sinica, 2016 - sioc-journal.cn
Diazo compounds represent a type of very important synthetic intermediates, which
demonstrate wide applications in organic synthesis, continuous-in-flow technology, polymer …