Synthesis 2016; 48(03): 407-412
DOI: 10.1055/s-0035-1560964
paper
© Georg Thieme Verlag Stuttgart · New York

Cascade Oxa-Michael–Henry Reaction of Salicylaldehydes with Nitrostyrenes via Ball Milling: A Solvent-Free Synthesis of 3-Nitro-2H-chromenes

Shui-Xiang Liu
a   Hainan Provincial Key Lab of Fine Chemistry (Hainan University), Haikou, Hainan 570228, P. R. of China   Email: zhangqi@hainu.edu.cn   Email: hnfinechem@163.com
,
Chun-Man Jia*
a   Hainan Provincial Key Lab of Fine Chemistry (Hainan University), Haikou, Hainan 570228, P. R. of China   Email: zhangqi@hainu.edu.cn   Email: hnfinechem@163.com
b   Key Study Center of the National Ministry of Education for Tropical Resources Utilization (Hainan University), Haikou, Hainan 570228, P. R. of China
,
Bo-Yuan Yao
a   Hainan Provincial Key Lab of Fine Chemistry (Hainan University), Haikou, Hainan 570228, P. R. of China   Email: zhangqi@hainu.edu.cn   Email: hnfinechem@163.com
,
Xiang-Long Chen
a   Hainan Provincial Key Lab of Fine Chemistry (Hainan University), Haikou, Hainan 570228, P. R. of China   Email: zhangqi@hainu.edu.cn   Email: hnfinechem@163.com
,
Qi Zhang*
a   Hainan Provincial Key Lab of Fine Chemistry (Hainan University), Haikou, Hainan 570228, P. R. of China   Email: zhangqi@hainu.edu.cn   Email: hnfinechem@163.com
b   Key Study Center of the National Ministry of Education for Tropical Resources Utilization (Hainan University), Haikou, Hainan 570228, P. R. of China
› Author Affiliations
Further Information

Publication History

Received: 24 August 2015

Accepted after revision: 23 October 2015

Publication Date:
07 December 2015 (online)


Abstract

Cascade oxa-Michael–Henry reactions of salicylaldehyde derivatives with β-nitrostyrenes catalyzed by potassium carbonate via solvent-free ball milling are demonstrated. The corresponding 3-nitro-2H-chromene products were obtained in moderate to excellent yields. This method offers significant advantages, particularly in terms of high yields, short reaction times and mild conditions.