57981-23-4Relevant academic research and scientific papers
Nickel-Catalyzed Mizoroki–Heck-Type Reactions of Unactivated Alkyl Bromides
Kwiatkowski, Megan R.,Alexanian, Erik J.
, p. 16857 - 16860 (2018/11/27)
The development of a general, nickel-catalyzed alkyl-Mizoroki–Heck reaction of unactivated alkyl bromides is described. The mild reaction proceeds efficiently using a wide range of primary and secondary alkyl bromides, and examples of intermolecular cross
Domino Aryne Annulation via a Nucleophilic-Ene Process
Xu, Hai,He, Jia,Shi, Jiarong,Tan, Liang,Qiu, Dachuan,Luo, Xiaohua,Li, Yang
, p. 3555 - 3559 (2018/03/21)
1,2-Benzdiyne equivalents possess the unique property that they can react with two arynophiles through iteratively generated 1,2- and 2,3-aryne intermediates. Upon rational modification on the second leaving group of these aryne precursors, a domino aryne annulation approach was developed through a nucleophilic-ene reaction sequence. Various benzo-fused N-heterocyclic frameworks were achievable under transition metal-free conditions with a broad substrate scope.
Catalytic Multisite-Selective Acetoxylation Reactions at sp2 vs sp3 C-H Bonds in Cyclic Olefins
Zang, Zhong-Lin,Zhao, Sheng,Karnakanti, Shuklachary,Liu, Cheng-Lin,Shao, Pan-Lin,He, Yun
, p. 5014 - 5017 (2016/10/14)
The first Pd-catalyzed multisite-selective acetoxylation reactions are disclosed at an unactivated alkene sp2 C-H bond versus secondary allylic sp3 C-H bond in cyclic olefins via the modulation of directing groups. The different directing groups overcome the key challenge in differentiating C-H bonds and provide a new controlling approach for site-specific C-H activation. A wide variety of substrates are readily acetoxylated under operationally simple conditions. Mechanistic studies suggest that different Pd (IV) intermediates were involved in the multisite-selective acetoxylation reactions.
Palladium-catalyzed rearrangement of allylic sulfoximines: Application to the asymmetric synthesis of chiral allylic amines
Pyne, Stephen G.,Dong, Zemin
, p. 5517 - 5522 (2007/10/03)
The palladium(0)-catalyzed reactions of the primary and secondary allylic sulfoximines 7, 9, 11, 13, 15, 17, and 19 gives allylic sulfinamides without 1,3-allylic rearrangement. These compounds were not isolated but were converted to their corresponding N-tosyl allylic amines, primary and secondary 8, 10, 12, 14, 16, 18, and 20, respectively. In the case of the optically active secondary allylic sulfoximines 17 and 19, chiral N-tosyl allylic secondary amines were formed in high enantiomeric purities.
