A method of preparing a photosensitizer condensate comprising: condensing a phenolic compound with a diazo sulfonyl chloride, wherein from about 50 to 100 mole percent of the diazo moiety is 2,1,4-diazo and from 0 to about 50 mole percent of the diazo moiety is 2,1,5 diazo; the phenolic compound having, on average, from about 60 mole percent to about 100 mole percent of its hydroxy groups esterified by the diazo sulfonyl chloride; wherein the condensing is conducted in a lactone solvent in the presence of an acid scavenger; and then subsequently isolating the photosensitizer condensate.
一种制备光敏剂缩合物的方法,包括将
酚类化合物与重氮
磺酰氯缩合,其中重氮基中约 50 至 100 摩尔%为 2,1,4-重氮,重氮基中 0 至约 50 摩尔%为 2,1,5-重氮;
酚类化合物平均约 60 摩尔%至约 100 摩尔%的羟基被重氮
磺酰氯酯化;其中,缩合在内酯溶剂中在酸清除剂存在下进行;然后分离光敏剂缩合物。