Zobrazeno 1 - 10
of 169
pro vyhledávání: '"Nobuhiro Kihara"'
Publikováno v:
Polymers, Vol 16, Iss 9, p 1222 (2024)
Diacylhydrazine is thermally and chemically stable, and it remains inert to oxygen even at high temperatures. However, it is rapidly oxidized by sodium hypochlorite, leading to its decomposition into carboxylic acid and nitrogen gas. In the synthesis
Externí odkaz:
https://doaj.org/article/d1b49e3d323447d1a1b7a022e88572e8
Autor:
Nobuhiro Kihara
Publikováno v:
Impact. 2022:34-36
Polymers are useful and increasingly prolific and their improper disposal is a growing problem. Diacylhydrazine can be incorporated into polymers to enhance thermal and chemical stability and may also make them oxidatively degradable, which means the
Autor:
Nobuhiro Kihara
Publikováno v:
Chemistry International. 44:49-51
Autor:
Nobuhiro Kihara, Kazuya Yanaze
Publikováno v:
Polymer Journal. 53:1153-1155
A superabsorbent polymer crosslinked with diacylhydrazine was prepared. The swollen gel was instantly solubilized by treatment with a small amount of sodium hypochlorite solution. A novel superabsorbent polymer crosslinked with diacylhydrazine DC-SAP
Publikováno v:
Polymer Journal. 51:1007-1013
Bulk copolymerization of bis(acryloylhydrazine) with N,N-dimethylacrylamide or N,N-diethylacrylamide yielded a transparent crosslinked polymer monolith. Upon treatment with a sodium hypochlorite solution, the cross-linked monolith dissolved in water
Autor:
Eiichi Kudo, Nobuhiro Kihara
Publikováno v:
Chemistry Letters. 48:502-505
The sol-gel reaction of tetraethoxysilane was performed in the presence of a polyester bearing a diacylhydrazine moiety to prepare an organic-inorganic hybrid, which was oxidatively degraded at roo...
Publikováno v:
Tetrahedron Letters. 60:1291-1294
Hydrazides and amines were N-formylated by DMF in the presence of tert-butyldimethylsilyl triflate (TBSOTf) at room temperature, in good to excellent yields.
Autor:
Masayoshi Sakurai, Nobuhiro Kihara
Publikováno v:
Polymer. 167:60-66
A novel Diels–Alder polymerization system was developed, using an azodicarbonyl compound as the dienophile. A bis(azodicarbonyl) monomer was prepared by quantitative oxidation of bis(diacylhydrazine) with tBuOCl in the presence of pyridine. Diels
Rotaxanes can have topological isomers because of their mechanically interlocked axle and wheel components. Directional isomers are formed when the rotaxanes are constructed using an asymmetric axle and a three-dimensional non-symmetrical wheel. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ca278be3233aaba7aec6bffe86ddeec
Publikováno v:
Chemistry Letters. 47:144-147
A synthetic route to α-aminoketone derivatives via a hetero Diels–Alder reaction is described. Diacylhydrazine was oxidized by tert-butyl hypochlorite in the presence of pyridine. After evaporation, the hetero Diels–Alder reaction with diene was