CAS: 1562-94-3; 1,2-Bis(4-Methoxyphenyl)Diazene 1-Oxide

上下游产品

methanol para-dinitrobenzene sodium methylate para-methoxynitrobenzene (E)-1,2-bis(4-methoxyphenyl)diazene 4,4'-dimethoxy-2-hydroxyazobenzene 2,4,4'-trimethoxyazobenzen 3-acetoxy-4,4'-dimethoxyazobenzene

📜对二硝基苯置于甲醇,Sodium Methylate体系中,化学反应生成4,4'-氧化偶氮苯甲醚
参考文献:ber Reduktion-Reaktionen Des P-Dinitro-Benzols
标题:ber Reduktion-Reaktionen Des P-Dinitro-Benzols
摘要:
Doi:10.1002/hlca.193802101104

专利信息

专利号:US-RE29349-E
优先权日:1973-05-24
标 题 :Organic thermotropic nematic compounds
摘要:A new family of organic thermotropic nematic compounds comprising N-(para-substituted alkoxy-benzylidene)-anilines having also a para-n-butyl substituent on the aniline ring. These compounds have the following structural formula: ##STR1## wherein R is a straight chain alkyl group containing 1 to 4 carbon atoms and R' is n-butyl. Synthesis involves combining the desired p-substituted benzaldehyde and p-n-butyl aniline in equimolar proportions in anhydrous ethyl alcohol with glacial acetic acid as catalyst. The resulting homologous series of compounds are useful as materials which undergo a change in optical properties under the influence of externally applied energy, preferred members of which, either individually or in binary mixtures, have melting points near room temperature, a broad nematic mesomorphic temperature range within an overall range of about 0° to about 70° C., low viscosity in the nematic phase, good stability, and substantially no color.

专利号:US-3829491-A
优先权日:1969-04-17
标题 :Organic thermotropic nematic compounds
发明人：STREBEL E
权利人:VARI LIGHT CORP
摘要:A NEW FAMILY OF ORGANIC THERMOTROPIC NEMATIC COMPOUNDS COMPRISING N-(PARA-SUBSTITUTED ALKOXY-VENZYLIDENE)-ANILINES HAVING ALSO A PARA-N-BUTYL SUBSTITUTED ON THE ANILINE RING. THESE COMPOUNDS HAVE THE FOLLOWING STRUCTURAL FORMULA: 1-(RO-),4-((4-R''-PHENYL)-N=CH-)-BENZENE WHEREIN R IS A STRAIGHT CHAIN ALKYL GROUP CONTANING 1 TO 4 CARBON ATOMS AND R'' IS N-BUTYL. SYNTHESIS INVOLVES COMBINING THE DESIRED P-SUBSTITUTED BENZALDEHYDE AND P-NBUTYL ANILINE IN EQUIMOLAR PROPORTIONS IN ANHYDROUS ETHYL ALCOHOL WITH GLACIAL ACETIC ACID AS CATALYST. THE RESULTING HOMOLOGOUS SERIES OF COMPOUNDS ARE USEFUL AS MATERIALS WHICH UNDERGO A CHANGE IN OPTICAL PROPERTIES UNDER THE INFLUENCE OF EXTERNALLY APPLIED ENERGY, PREFERRED MEMBERS OF WHICH, EITHER INDIVIDUALLY OR IN BINARY MIXTURES, HAVE MELTING POINT NEAR ROOM TEMPERATURE, A BROAD NEMATIC MESOMORPHIC TEMPERATURE RANGE WITHIN AN OVERAL RANGE OF ABOUT 0* TO ABOUT 70*C., LOW VISCOSITY IN THE NEMATIC PHASE, GOOD STABILITY, AND SUBSTANTIALLY NO COLOR.