玫瑰红银试剂,又称对二甲氨基亚苄基玫瑰红,是一种红色蓬松粉末,熔点为285-288℃。它溶于强酸,微溶于乙醇、乙醚和丙酮,而不溶于水。
用途试银灵广泛用于检测Ag、Au、Cu、Hg、Pd、Pt以及生物碱(alkaloids)、安替比林、尿蓝母(indican)、硫铵安类药剂和尿胆素原。具体应用包括:
参考资料:
2-Hydroxyethylammonium formate acts as a task-specific ionic liquid (TSIL) for the Knoevenagel condensation of carbonyl compounds with rhodanine to afford arylalkylidene rhodanines under solvent-free conditions and in good-to-excellent yields. Additionally, compared with those in organic solvents, the yields obtained in the presence of our ionic liquid (IL) were significantly increased. The detailed mechanism of the catalytic effect of TSIL is also reported for the first time.
5-(Arylmethylidene)rhodanines have been synthesised in 88–95% yields by Knoevenagel condensation of various aromatic aldehydes with rhodanine in the presence of a catalytic amount of iodine at room temperature by grinding under solvent-free conditions.