AUTHOR=Chang Yaoyao , Fu Jianfang , Li Yingxue , Ding Rongcai , Liu Yue , Hu Jinxing 

TITLE=Pd-Catalyzed Rearrangement Reaction of N-Tosylhydrazones Bearing Allyl Ethers Into Trans-Olefin-Substituted Sulfonylhydrazones

JOURNAL=Frontiers in Chemistry

VOLUME=9

YEAR=2021

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2021.782641

DOI=10.3389/fchem.2021.782641

ISSN=2296-2646

ABSTRACT=<p>A novel and efficient rearrangement of <italic>N</italic>-tosylhydrazones bearing allyl ethers into <italic>trans</italic>-olefin-substituted sulfonylhydrazones is proposed. The reaction involves breakage of the C-O bond and formation of the C-N bond. The reaction can be extended to a wide range of substrates, and the target products can be synthesized smoothly, regardless of the presence of electron-donating and electron-withdrawing groups. The proposed strategy is a new direction in the field of rearrangement reactions.</p>