63133-13-1Relevant academic research and scientific papers
Rhodium(iii)-catalyzed C-H/C-C activation sequence: Vinylcyclopropanes as versatile synthons in direct C-H allylation reactions
Wu, Jia-Qiang,Qiu, Zhi-Ping,Zhang, Shang-Shi,Liu, Jing-Gong,Lao, Ye-Xing,Gu, Lian-Quan,Huang, Zhi-Shu,Li, Juan,Wang, Honggen
, p. 77 - 80 (2015/01/09)
Succession of C-H activation and C-C activation was achieved by using a single rhodium(iii) catalyst. Vinylcyclopropanes were used as versatile coupling partners. Mechanistic studies suggest that the olefin insertion step is rate-determining and a facile β-carbon elimination is involved, which represents a novel ring opening mode of vinylcyclopropanes. This journal is
Mild rhodium(III)-catalyzed C-H allylation with 4-vinyl-1,3-dioxolan-2-ones: Direct and stereoselective synthesis of (E)-allylic alcohols
Zhang, Shang-Shi,Wu, Jia-Qiang,Lao, Ye-Xing,Liu, Xu-Ge,Liu, Yao,Lv, Wen-Xin,Tan, Dong-Hang,Zeng, Yao-Fu,Wang, Honggen
, p. 6412 - 6415 (2015/01/09)
A rhodium(III)-catalyzed C-H direct allylation reaction with 4-vinyl-1,3-dioxolan-2-ones has been developed. The reaction provides a facile and stereoselective access to substituted-(E)-allylic alcohols under mild and redox-neutral reaction conditions. Olefinic C-H activation is applicable, giving multifunctionalized skipped dienes in good yields. Minimal double-bond migration was observed.
Direct conversion of N -alkoxyamides to carboxylic esters through tandem nbs-mediated oxidative homocoupling and thermal denitrogenation
Zhang, Ningning,Yang, Rui,Zhang-Negrerie, Daisy,Du, Yunfei,Zhao, Kang
, p. 8705 - 8711 (2013/09/24)
Treatment of N-alkoxyamides with NBS in toluene was found to conveniently afford the corresponding carboxylic esters, including those bearing a bulky or long-chain substituent, in satisfactory to excellent yields. This approach not only represents a convenient and economic approach to a direct transformation of an alkoxyamide moiety into the carboxylic ester functional group, via oxidative homocoupling and the subsequent thermal denitrogenation, but also facilitates the synthesis of sterically hindered carboxylic esters.
