224790-08-3Relevant academic research and scientific papers
Synthesis of carboranyl amides catalyzed by recyclable Pd (0) nanoparticles supported on carbon nanotubes (CNTs)
Biying, Algin Oh,Yuanting, Karen Tang,Hosmane, Narayan S.,Yinghuai, Zhu
, p. 184 - 188 (2013)
Palladium (0) nanoparticles with small size and narrow size distribution were synthesized conveniently and supported on CNTs. The supported nano-Pd 0 was found to be a highly efficient and recyclable catalyst for the aminocarboranylation reaction of aryl halide. Thus, a series of carboranyl amides, 1-R-2-[CH2NHC(=O)Ar]-1,2-C2B10H 10 (R = H, Me; Ar = C6H5, 4-Me-C 6H5, 4-MeO-C6H5 and 2-C 5NH4), were synthesized and fully characterized. The catalyst was recyclable at least three times with sustained activity.
Synthesis and new application of green and recyclable cyclic poly(L -lactide)-clay hybrid
Prasad, Aitha Vishwa,Biying, Algin Oh,Ling, Woo Yuan,Stubbs, Ludger Paul,Zhu, Yinghuai
, p. 4167 - 4174 (2013/09/23)
We report on the application of biodegradable cyclic poly(L-lactide) (PLLA) as new stabilizer; synthesis and application of a cyclic PLLA-clay hybrid material as recyclable catalyst support. Cyclic PLLAs were used to stabilize palladium nanoparticles synthesized by a wet chemical method. It was found that the palladium particles were smaller with cyclic PLLA stabilizer (～5-10 nm) than the particles obtained from linear PLLA. The cyclic PLLA-clay hybrid was prepared by a zwitterionic ring-opening polymerization catalyzed by in situ-generated N-heterocyclic carbene catalyst. Palladium (0) nanoparticles were supported and well dispersed on the cyclic PLLA-clay hybrid to form a new nanocomposite. The nanocomposite was found to be a highly efficient and recyclable catalyst for the aminocarbonylation reactions of aryl halides with various amines.
Coupling of amino carboranes to carboxylic acid containing substrates
Wu, Ye,Quintana, William
, p. 2025 - 2029 (2008/10/08)
The reactivity of the known amino carboranes 1-H2NCH2-1,2-C2B10H11 and 7-H3N-7-CB10H12 with carboxylic acid containing substrates was investigated. The reactions studied using the coupling reagent, 1,1′-carbonyldiimidazole, resulted in the preparation of a series of amides in moderate to high yield. The relative importance of this type of research resides in the fact that it allows the introduction of amino acids in close contact with the carborane cage. These compounds can constitute a new generation of substrates useful in boron neutron capture therapy. Our emphasis lies in the development of suitable synthetic schemes allowing the preparation of this type of compound. Experimental details and analytical data supporting the formulation of the prepared compounds are reported.
