H Xiong, X Wu, H Wang, S Sun, JT Yu… - Advanced Synthesis & …, 2019 - Wiley Online Library
A transition‐metal‐free reaction of o‐aminoacetophenone N‐tosylhydrazone and CO2 has
been developed, leading to a series of 1, 4‐dihydro‐2H‐3, 1‐benzoxazin‐2‐ones in …