CAS: 626-06-2; 2,6-Dihydroxypyridine

相似化合物

72762-00-6 6231-18-1 13466-41-6

上下游产品

CAS号6231-18-1 2,6-二甲氧基吡啶 | CAS号141-86-6 2,6-二氨基吡啶 | CAS号13472-57-6 2,6-二乙氧基吡啶 | CAS号7664-93-9 硫酸

2,6-二乙氧基吡啶置于氢溴酸体系中,化学反应生成 2,6-二羟基吡啶
参考文献:Den Hertog Et Al.,Recueil Des Travaux Chimiques Des Pays-Bas,1950,Vol. 69,P. 673,690
标题:Den Hertog Et Al.,Recueil Des Travaux Chimiques Des Pays-Bas,1950,Vol. 69,P. 673,690

专利信息

专利号:US-6159673-A
优先权日:1996-07-17
标 题:Oxonol compound, light-sensitive material and process for the synthesis of oxonol compound
发明人：NISHIGAKI JUNJI; DEGUCHI YASUAKI
权利人:FUJI PHOTO FILM CO LTD
摘要:An oxonol compound is represented by the following formula (I): in which Z is an atomic group that forms a cyclic amide ring; each of W1 and W2 independently is an atomic group that forms an acidic nucleus ring; and M is a cation. Other oxonol compounds, a light-sensitive material containing an oxonol compound and a process for the synthesis of an oxonol compound are also disclosed.

专利号:EP-1473330-B1
优先权日:1996-07-17
标题:Process for the synthesis of oxonol compound
发明人：NISHIGAKI JUNJI; DEGUCHI YASUAKI
权利人:FUJI PHOTO FILM CO LTD
摘要:An oxonol compound is represented by the following formula (I): in which each of Z, W<1> and W<2> independently is an atomic group that forms a heterocyclic ring; and M is a cation. A process for the synthesis of an oxonol compound is disclosed.

专利号:US-5243032-A
优先权日:1989-06-22
标题:Preparation of azo pigments with low pcb content by coupling in the presence of olefins
发明人：RIEPER WOLFGANG
权利人:HOECHST AG
摘要:The production which is customary in practice of monoazo compounds based on dichloro- and trichloroanilines or disazo compounds of the chlorinated biphenyl series by conventional coupling methods meets with difficulties in that the resulting pigments are contaminated by traces of polychlorinated biphenyls. n According to the invention, it has now been found that by addition of water-soluble olefins of the type ##STR1## (R =H, alk or Oalk; X =--COOR 1 , --CONHR 2 or --NR 3 COR 4 ) n in the azo coupling, the side reactions which form PCBs can be decidedly suppressed during synthesis of the pigments.

专利号:US-4118384-A
优先权日:1976-02-21
标题 :Process for preparation of azo dyestuffs by coupling in presence of aromatic sulphonic acid-formaldehyde reaction product
发明人：MOLLS HANS-HEINZ; SCHIWY WILLY; HORNLE REINHOLD; NEBELING REINHARD
权利人:BAYER AG
摘要:Dyestuff dispersions and dyestuff solutions free from salt or at least having a low salt content are obtained in that the diazotization is carried out with addition of free dispersing agent acid to which, after the synthesis, either no basic agents are added or basic agents are added only up to a pH value of 3. The disclosed process gives dyestuff compositions of low salt content and results in readily dispersible dyestuffs when water insoluble dyestuffs are prepared and stable solutions when water soluble dyestuffs are prepared. The process is widely applicable and chemical constitution of the dyestuffs is conventional.

专利号:EP-1473330-A1
优先权日:1996-07-17
标题:Process for the synthesis of oxonol compound

专利号:CN-115340447-A
优先权日:2022-09-19
标 题:One-pot Synthesis of Two Caged Macrocyclic Aromatics and Its Separation and Purification Method