Three-component sequential synthesis of N,N′-disubstituted 5-arylidenedihydropyrimidine-2,4-dione
作者:Maria Cristina Bellucci、Alessandro Volonterio
DOI:10.1016/j.tetlet.2012.06.109
日期:2012.8
A three-component sequential process consisting in (1) in situ formation of carbodiimides by Staudinger reaction, (2) reaction with 2-(bromomethyl)-3-aryl-2-propenoicacids, and (3) final cyclization of the resulting N-acylurea intermediates in order to obtain the synthesis of an array of N,N′-disubstituted 5-arylidenedihydropyrimidine-2,4-dione under mild conditions is presented.
Synthesis and cyclo-oligomerization of 2-(bromomethyl)-3-aryl-2-propenoic acid derivatives
作者:Yusuf Zulykama、Paramasivan T. Perumal
DOI:10.1016/j.tetlet.2009.04.053
日期:2009.7
2-Bromomethyl-3-aryl-2-propenoic acids have been synthesized from Baylis–Hillman adducts derived fromaromaticaldehydes and t-butyl acrylates as new precursors in MBH chemistry. Further triolides were synthesized by the cyclo-oligomerization of 2-bromomethyl-3-aryl-2-propenoic acids in the presence of Cs2CO3 demonstrating the synthetic utility of these motifs.
2-溴甲基-3-芳基-2-丙烯酸是由MBIS化学中的新前体芳族醛和丙烯酸叔丁酯衍生的Baylis-Hillman加合物合成的。在Cs 2 CO 3存在下,通过2-溴甲基-3-芳基-2-丙酸的环低聚反应合成了其他三醇化物,证明了这些基序的合成效用。