{"title":"3,4-二芳基-1,2,5-恶二唑-2-氧化物与水合肼的反应","authors":"Kazufumi Takahashi, 高橋 和文, A. Torii, 鳥井 昭美, K. Kamata, 鎌田 吉之助, Toshimi Sugino, 杉野 紀三, カズフミ タカハシ, アキヨシ トリイ, トシミ スギノ, キチノスケ カマタ","doi":"10.15017/17385","DOIUrl":null,"url":null,"abstract":"Previously, 2,5-diphenylpyridines, which is annelated at 3 and 4 positions with a heteroaromatic ring such as 1,2,5-oxa-, 1,2,5-thia-, and 1,2,5-selena-diazole, thiophene, IV-methylpyrrole,•1,2,3-triazole, pyrazole, imidazole, pyridine, and pyrazine, were prepared. These compounds are fluorescent in a solid state and are of interest as a light emitting material for an electroluminescence devicei). Earlier, it was reported that the reaction of 3,4-dibenzoyl-1,2,5-oxadiazole-2-oxide (la) with hydrazine dihydrochloride in refluxing methanol gave 1,2,5-oxadiazolo[3,4-d]pyridazine-1-oxide 2a2). In the reaction with an excess amount of hydrazine, it was expected that the deoxygenation of 1-oxide 2 might occur to afford 1,2,5-oxadiazolo[3,4-d] pyridazine 3, which is an azaanalogue of strongly fluorescent 4,7-diaryl-1,2,5-oxadiazolo[3,4-d] pyridinei'.","PeriodicalId":11722,"journal":{"name":"Engineering sciences reports, Kyushu University","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1995-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Reaction of 3,4-Diaroyl-1,2,5-oxadiazole-2-oxide with Hydrazine Hydrate\",\"authors\":\"Kazufumi Takahashi, 高橋 和文, A. Torii, 鳥井 昭美, K. Kamata, 鎌田 吉之助, Toshimi Sugino, 杉野 紀三, カズフミ タカハシ, アキヨシ トリイ, トシミ スギノ, キチノスケ カマタ\",\"doi\":\"10.15017/17385\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Previously, 2,5-diphenylpyridines, which is annelated at 3 and 4 positions with a heteroaromatic ring such as 1,2,5-oxa-, 1,2,5-thia-, and 1,2,5-selena-diazole, thiophene, IV-methylpyrrole,•1,2,3-triazole, pyrazole, imidazole, pyridine, and pyrazine, were prepared. These compounds are fluorescent in a solid state and are of interest as a light emitting material for an electroluminescence devicei). Earlier, it was reported that the reaction of 3,4-dibenzoyl-1,2,5-oxadiazole-2-oxide (la) with hydrazine dihydrochloride in refluxing methanol gave 1,2,5-oxadiazolo[3,4-d]pyridazine-1-oxide 2a2). In the reaction with an excess amount of hydrazine, it was expected that the deoxygenation of 1-oxide 2 might occur to afford 1,2,5-oxadiazolo[3,4-d] pyridazine 3, which is an azaanalogue of strongly fluorescent 4,7-diaryl-1,2,5-oxadiazolo[3,4-d] pyridinei'.\",\"PeriodicalId\":11722,\"journal\":{\"name\":\"Engineering sciences reports, Kyushu University\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1995-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Engineering sciences reports, Kyushu University\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.15017/17385\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering sciences reports, Kyushu University","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15017/17385","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Reaction of 3,4-Diaroyl-1,2,5-oxadiazole-2-oxide with Hydrazine Hydrate
Previously, 2,5-diphenylpyridines, which is annelated at 3 and 4 positions with a heteroaromatic ring such as 1,2,5-oxa-, 1,2,5-thia-, and 1,2,5-selena-diazole, thiophene, IV-methylpyrrole,•1,2,3-triazole, pyrazole, imidazole, pyridine, and pyrazine, were prepared. These compounds are fluorescent in a solid state and are of interest as a light emitting material for an electroluminescence devicei). Earlier, it was reported that the reaction of 3,4-dibenzoyl-1,2,5-oxadiazole-2-oxide (la) with hydrazine dihydrochloride in refluxing methanol gave 1,2,5-oxadiazolo[3,4-d]pyridazine-1-oxide 2a2). In the reaction with an excess amount of hydrazine, it was expected that the deoxygenation of 1-oxide 2 might occur to afford 1,2,5-oxadiazolo[3,4-d] pyridazine 3, which is an azaanalogue of strongly fluorescent 4,7-diaryl-1,2,5-oxadiazolo[3,4-d] pyridinei'.