Photo-polymerizable water-developable composition and elements
申请人:Eastman Kodak Company
公开号:US04229519A1
公开(公告)日:1980-10-21
There is disclosed a radiation-sensitive composition and element comprising (a) a water-soluble polymer containing a quaternized nitrogen in a 5-membered ring and (b) a photoinitiator, and processes for preparing the polymer and for using the composition.
Hexabromoacetone as tribromoacetylating agent of alcohols and amines and as mediator in the conversion of carboxylic acids into amides in the presence of triphenylphosphine
作者:Fabrício G. Menezes、Rosane Kolling、Adaílton J. Bortoluzzi、Hugo Gallardo、César Zucco
DOI:10.1016/j.tetlet.2009.03.093
日期:2009.5
Hexabromoacetone has been used as an alternative tribromoacetylating agent of primary alcohols and amines and as mediator in the conversion of carboxylicacids into amides in the presence of triphenylphosphine. The reactions have been performed under mild conditions with moderate to good yields. All the products have been adequately characterized by their physical and spectroscopic properties.