Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Diverse substituted pyridines and pyrimidines with high selectivity were obtained using a concise and efficient protocol developed herein. The reaction proceeds via metal-free cascade annulation of isopropene derivatives. Using isopropene derivatives as C3 synthons, NHI as the "N" source, and formaldehyde or dimethyl sulfoxide as the carbon source, this reaction realizes the efficient formation of intermolecular C-N and C-C bonds.

Download full-text PDF

Source
http://dx.doi.org/10.1021/acs.orglett.2c00124DOI Listing

Publication Analysis

Top Keywords

isopropene derivatives
12
substituted pyridines
8
pyridines pyrimidines
8
cascade annulation
8
annulation isopropene
8
selective synthesis
4
synthesis substituted
4
pyrimidines cascade
4
derivatives diverse
4
diverse substituted
4

Similar Publications

Diverse substituted pyridines and pyrimidines with high selectivity were obtained using a concise and efficient protocol developed herein. The reaction proceeds via metal-free cascade annulation of isopropene derivatives. Using isopropene derivatives as C3 synthons, NHI as the "N" source, and formaldehyde or dimethyl sulfoxide as the carbon source, this reaction realizes the efficient formation of intermolecular C-N and C-C bonds.

View Article and Find Full Text PDF

Different copolymers incorporating terpene oxide units (e.g., limonene oxide) have been evaluated considering thermal properties, degradability, and biocompatibility.

View Article and Find Full Text PDF

The use of potassium ethyl xanthate (EtOCSk) as a sulfur atom donor enabled the transition-metal-free [3 + 1 + 1] cascade annulation of isopropene derivatives with NHI in DMSO/HO, affording various 4-substituted isothiazoles in moderate to good yields with good functional group compatibility. Furthermore, Pd and Ag-catalyzed C5-H-selective direct oxidation dimerization of 4-substituted isothiazoles afforded 5,5'-bisisothiazoles. This series of reactions included the formation of new C-S, C-N, N-S, and C-C bonds via cascade addition, annulation, and direct C-H activation under mild conditions.

View Article and Find Full Text PDF