3910-55-2Relevant articles and documents
[2]Pseudorotaxanes based on naphtho-21-crown-7 and secondary dialkylammonium salts: Remarkably improved association constants among four threaded structures
Zhou, Qizhong,Luo, Yan,Jiang, Huajiang,Ye, Yuyuan,Zhang, Quan,Dai, Guoliang,Chen, Rener
, p. 319 - 323 (2014)
This research article is focused on the recognition interaction of a new host naphtho-21-crown-7 and four secondary dialkylammonium salts. In acetone, they can form 1:1 host-guest complexes which belong to slow-exchange systems. We also found the differen
Tunable Synthesis of α-Amino Boronic Esters from Available Aldehydes and Amines through Sequential One-Pot Dehydration and Copper-Catalyzed Borylacylation
Xia, Qi,Chang, Hua-Rong,Li, Juan,Wang, Jia-Yi,Peng, Yan-Qing,Song, Gong-Hua
, p. 2716 - 2724 (2020/01/31)
Copper-catalyzed multicomponent borylacylation of imines with acid chlorides and bis(pinacolato)diboron was developed for the preparation of synthetically useful and pharmacologically relevant α-amino boronic acid derivatives. Starting from a range of acid chlorides and imines with aryl, heteroaryl, and alkyl substituents, most of these ligand-free reactions proceeded smoothly at room temperature in moderate to good yields. Furthermore, a facile and convenient one-pot, multistep access to the direct synthesis of α-amino boronic acid derivatives from available aldehydes and amines was also developed.
Au nanoparticle-immobilized L-cysteine-paired porous ionic copolymer as an efficient catalyst for additive-free oxidative coupling of alcohols and amines
Du, Shengyu,Zhang, Chenjun,Jiang, Yuchen,Jiang, Pingping,Leng, Yan
, (2019/07/04)
Herein, an L-cysteine-paired ionic copolymer (DVB-[MimLcy]n) with mesoporosity was prepared by free radical copolymerization of divinylbenzene (DVB) and imidazolium ionic liquids (ILs), followed by anion-exchange with L-cysteine. Because of the rich functional groups of –NH2, –SH, and –COO– and the porous framework, the DVB-[MimLcy]3 was revealed to be an ideal stabilizer for metal nanoparticles (NPs). Highly uniform dispersed small Au NPs (2–3 nm) immobilized on DVB-[MimLcy]3 (Aua/DVB-[MimLcy]3) can act as an efficient heterogeneous catalyst for additive-free synthesis of imines through coupling of a broad range of alcohols and organic amines and can be easily recovered and steadily reused several times.