CAS: 67827-72-9; 2-Methoxy-5-Nitroaniline Hydrochloride

专利信息

专利号:US-10807979-B2
优先权日:2017-05-11
标题:4,5-disubstituted-1H-pyrrolo(2,3-f)quinolin-2,7,9-tricarboxylate compound and use thereof
发明人：WANG JINGLIN; QIN SONG; MU ZHENQIANG; LI YANG
权利人:SHANDONG CAMASY BIOTECHNOLOGY CO LTD; SHANGDONG CAMASY BIOTECHNOLOGY CO LTD
摘要:A 4,5-disubstituted-1H-pyrrolo(2,3-f)quinolin-2,7,9-tricarboxylate compound, or an analog, or derivative thereof, having a structure of Formula I: n nR 1 and R 4 are each independently an atom or group selected from hydrogen, a linear or branched C1-8 alkyl group, a deuterated linear or branched C1-8 alkyl group, an aralkyl group, or a substituted aryl group; R 2 is independently an atom or group selected from halogens, a linear or branched C1-8 alkoxy group, or a deuterated linear or branched C1-8 alkoxy group; and R 3 is independently an atom or group selected from a linear or branched C1-8 alkoxy group, or a deuterated linear or branched C1-8 alkoxy group. The compound is useful as a reaction intermediate for the synthesis of PQQ. A process in which CAN is used as an oxidant in the synthesis of PQQ in existing patents and literatures is replaced. This makes the process cheaper and more efficient.

专利号:CN-119798084-A
优先权日:2023-10-11
标题 :Chlorine-free synthesis method of 2, 4-dinitroanisole