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公开(公告)号：US3864333A
公开(公告)日：1975-02-04
申请号：US27964572
申请日：1972-08-10
Applicant: HOECHST AG
Inventor： SAHM WILFRIED , HORN ANTON
IPC: C09K3/00 , C07C45/70 , C07C45/71 , C07C47/575 , C07C49/84 , C07C205/35 , C07D263/56 , C07D263/60 , C07D307/77 , C07D307/79 , C07D307/81 , C07D307/92 , C07D307/93 , C07D413/04 , C07D5/40
CPC classification number: C07D263/56 , C07C45/70 , C07C45/71 , C07C47/575 , C07C49/84 , C07C201/10 , C07C253/30 , C07D263/60 , C07D307/77 , C07D307/79 , C07D307/92 , C07D307/93 , C07C205/34 , C07C255/54
Abstract: Benzofuranes are obtained by intramolecular condensation of aromatic oxo compounds having an oxymethylene group in ortho position. The condensation is effected with strongly alkaline agents in solution or in an alkali metal hydroxide melt. The products are useful as scintilators and optical brighteners.
Abstract translation: 苯并呋喃通过在邻位具有氧亚甲基的芳族氧代化合物的分子内缩合获得。 在溶液中或碱金属氢氧化物熔体中用强碱性试剂进行缩合。 该产品可用作闪烁剂和荧光增白剂。
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2.发明授权1,2,4-triazolyl-(1)-derivatives of the stilbene and bis-styrylbenzene series,process for their manufacture and their use as optical brighteners 失效苯乙烯和苯乙烯苯乙烯系列的1,2,4-三唑（1）衍生物及其制备方法及其作为光亮剂的使用
公开(公告)号：US3679668A
公开(公告)日：1972-07-25
申请号：US3679668D
申请日：1970-04-13
Applicant: HOECHST AG
Inventor： HORN ANTON , SCHINZEL ERICH , ROSCH GUNTER
IPC: C07D249/16 , C07D249/20 , C07D249/24 , C07D521/00 , C07D99/02
CPC classification number: C07D249/16 , C07D231/12 , C07D233/56 , C07D249/08 , C07D249/20 , C07D249/24
Abstract: 1,2,4-TRIAZOLYL-(1)-DERIVATIVES OF THE STILLBENE AND BISSTYRYLBENZENE SERIES ARE OBTAINED BY CONDENSATION OF THE CORRESPONDING PHENYLHYDRAZINES WITH FORMAMIDE. THE PRODUCTS ARE USEFUL AS OPTICAL BRIGHTENERS FOR VARIOUS SUBSTRATES.
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