反应详情

5.2.56 2-(4-(4,5-dichlorothiophene-2-sulfonamido)-1-hydroxynaphthalen-2-ylthio)acetic acid (14n) was prepared according to the procedure of procedure B for 10a except using 4,5-dichloro-N-(3-chloro-4-oxonaphthalen-1(4H)-ylidene)thiophenesulfonamide (12c), which afforded the title compound 17.8 mg (39%) as a white solid, m.p.: ° C.