Showing papers by "Jun-ichi Kadokawa published in 2001"
TL;DR: The present reaction system provides a new method for the preparation of polymer–polymer inclusion complexes in amylose–polyTHF.
73 citations
73 citations
TL;DR: In this paper, model compounds of phenol resin were reacted in sub- and supercritical water to clarify the mechanism of the decomposition reaction of plastics in water, and it was also confirmed that sub-and super-critical water played important roles not only as a stable solvent thermally, but also as a chemical reagent.
Abstract: Model compounds of phenol resin were reacted in sub- and supercritical water to clarify the mechanism of the decomposition reaction of plastics in water. Cleavage reaction of methylene bonds was confirmed in the reactions of model compounds of phenol resin such as bis(hydroxyphenyl)methanes in sub- and supercritical water under an Ar atmosphere, although the methylene bond was stable in thermal reactions. It was also confirmed that sub- and supercritical water played important roles not only as a stable solvent thermally, but also as a chemical reagent.
13 citations
TL;DR: In this article, new methyl yellow/V 2 O 5 intercalation compounds were prepared through the exfoliation/restacking method, and the interlayer spacing increased to 1.38 nm from 0.44 nm.
9 citations
TL;DR: In this paper, a new hybrid compound 3 consisting of arbutin and kojic acid was synthesized in four step reactions from 1 to 6, where phenolic hydroxy group of 1 was protected, and then tosyl group was introduced at position 6, giving rise to the electrophile-type ARB derivative 5, and nucleophilic substitution of 2 with 5 successfully took place in the presence of DBU in DMF solvent to produce the hybrid compound 6.
Abstract: This paper describes synthesis of new hybrid compound 3 consisting of arbutin (1) and kojic acid (2). The compound was synthesized in four step reactions from 1. At first, phenolic hydroxy group of 1 was protected, and then tosyl group was introduced at position 6, giving rise to the electrophile-type arbutin derivative 5. Then, the nucleophilic substitution of 2 with 5 successfully took place in the presence of DBU in DMF solvent to produce the hybrid compound 6. Finally, the deprotection of the benzyl group was carried out by the catalytic hydrogenation to give the desired compound 3. The analytical data of the compound fully supported the structure of 3.
3 citations
TL;DR: In this paper, the authors described the group-transfer copolymerization of cyclic trimethylsilyl dienolate with coumarin (4) in the presence of tetrabutylammonium benzoate as the catalyst.
1 citations