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。
Basavaiah; Reddy, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2001, vol. 40, # 10, p. 985 - 988
作者:Basavaiah、Reddy
DOI:——
日期:——
One-pot inter- and intramolecular Friedel–Crafts reactions in Baylis–Hillman chemistry: a novel facile synthesis of ( E )-2-arylideneindan-1-ones
作者:Deevi Basavaiah、Ravi Mallikarjuna Reddy
DOI:10.1016/s0040-4039(01)00354-9
日期:2001.4
A simple one-pot stereoselective transformation of tert-butyl 3-aryl-3-hydroxy-2-methylenepropanoates, the Baylis–Hillman adducts obtained from t-butyl acrylate, into (E)-2-arylideneindan-1-ones involving one inter- and one intramolecular Friedel–Crafts reaction is described.
A novel bifunctionalchiral pyridoxal derivative 1 with a bigger catalytic cavity than that of previous pyridoxal catalysts promoted direct asymmetric α-C allylation of NH2-unprotected glycinates with Morita–Baylis–Hillmanacetates. In this way, the chemoselectivity for glycinates was switched from intrinsic N-allylation to α-C allylation to produce chiral glutamic acid esters with excellent stereoselectivity