作者:Hong-Bo Wang、Bhanu P. Mudraboyina、Jiaxin Li、James A. Wisner
DOI:10.1039/c0cc02475a
日期:——
Molecular strands incorporating three hydrogen bond donor (D) or acceptor (A) heterocycles form highly stable double helical complexes through a complementary AAA–DDD array structure.
Sulfated Zirconia: An Efficient and Reusable Heterogeneous Catalyst in the Friedel–Crafts Acylation Reaction of 3-Methylindole
作者:Darío A. Vargas、Leticia J. Méndez、Alicia S. Cánepa、Rodolfo D. Bravo
DOI:10.1007/s10562-017-2057-x
日期:2017.6
efficient process for the Friedel–Crafts acylation of 3-methylindole with acid anhydrides in the presence of sulfated zirconia was developed. This catalyst shows excellent catalytic activity with good conversion and selectivity towards formation of the products of 2-acylation (3-methyl-1H-indol-2-yl)ketones. Other advantages related to this process are the simple work-up procedure and smaller production