Chromogenic or fluorogenic silanes are formed in which a reactive organosilane is coupled to a chromogenic or fluorogenic nucleus of the coumarin class of compounds, by an ether, urethane or urea linkage. The preferred compounds have the general formula. X.sub.y R'.sub.z Si(CH.sub.2).sub.n L-Cou wherein X is a displaceable or hydrolyzable group which allows the silanes to derivatize protic materials; R' is an aliphatic or aromatic hydrocarbon group; L is an ether (O), urethene (NCO) or urea (NCN) linkage; Cou is a coumarin derivative; n=1 to 8; y=1 to 3 and Z=0 to 2, such that y plus z equal 3. The ether linked silanes may be formed by hydrosilylation of an alkenyl ether of the coumarin compound, while the urethane or urea linked silanes may be formed by the direct reaction of a reactive silylisocyanate with a hydroxyl- or amine-substituted coumarin compound. The silanes are useful in derivatizing protic materials to provide the protic materials with chromogenic or fluorogenic properties.
形成了具有反应性有机
硅烷偶联到
香豆素类化合物的色素或荧光
硅烷,通过醚、
脲酯或
脲键连接。优选化合物具有一般式。X.sub.y R'.sub.z Si(CH.sub.2).sub.n L-Cou,其中X是可替代或
水解的基团,使
硅烷能够衍生出质子性材料;R'是脂肪族或芳香族碳氢基团;L是醚(O)、
脲酯(NCO)或
脲(NCN)键连接;Cou是
香豆素衍
生物;n=1至8;y=1至3,Z=0至2,使得y加z等于3。醚键连接的
硅烷可以通过
香豆素化合物的烯基醚的氢
硅化反应形成,而
脲酯或
脲键连接的
硅烷可以通过反应性
硅异氰酸酯直接与羟基或胺基取代的
香豆素化合物反应形成。这些
硅烷在衍生化质子性材料以赋予其色素或荧光特性方面非常有用。