terminal allyl groups by reduction of the product of reductive ozonolysis. Some of the terminal allyl derivatives are new and others have been prepared by new methods. The well-known O-benzylidene derivative of 2,2′-bis(hydroxymethyl)propanoic acid was shown to be the cis-stereoisomer. A new AB3-type anhydride, tris(benzyloxymethyl)acetic anhydride has been prepared. It was demonstrated that these cores
已经通过还原还原性
臭氧分解产物以一致的一锅方式从末端的烯丙基制备了六种由羟基基团封端的树枝状聚合物和树枝状核心,所述羟基不能被
酚解或不能被氢解。一些末端烯丙基衍
生物是新的,而另一些已通过新方法制备。2,2′-双(羟甲基)
丙酸的众所周知的O-亚苄基衍
生物被证明是顺式-立体异构体。已经制备了新的AB 3型酸酐,三(苄氧基甲基)
乙酸酐。结果表明,这些核和树枝状分子可以组装成第一代和第二代均聚物和混合聚酯树枝状聚合物。