5-Amido- and 5-Amino-Substituted Epoxyisoindolo[2,1-<i>a</i>]tetrahydroquinolines and 10-Carboxylic Acids: Their Synthesis and Reactivity
作者:Vladimir P. Zaytsev、Fedor I. Zubkov、Flavien A. A. Toze、Daria N. Orlova、Maria N. Eliseeva、Dmitry G. Grudinin、Eugeniya V. Nikitina、Alexey V. Varlamov
DOI:10.1002/jhet.1024
日期:2013.2
was shown that the initial N-acylation of the tetrahydroquinolines was followed by a spontaneous [4+2]-cycloaddition of an N-acryloyl substituent to the furan ring. It was established that the intramolecular Diels–Alder reaction of furans is reversible, occurs stereoselectively as exo-addition, and led to target epoxyisoindolo[2,1-a]tetrahydroquinolines with moderate yields. Oxidation and aromatization
研究了4-R-取代的2-呋喃基-1,2,3,4-四氢喹啉(通过Povarov反应合成)与许多烯烃之间的相互作用。马来酸,二溴马来酸,二氯马来酸和柠康酸酐,以及丙烯酰,甲基丙烯酰,巴豆酰和肉桂酰氯被用作烯烃组分。结果表明,在最初的四氢喹啉的N-酰化反应之后,N-丙烯酰基取代基自发地[4 + 2] -环加成到呋喃环上。它建立在分子内 Diels-Alder反应呋喃的是可逆的,可立体选择性地发生是由于外切-addition,并导致目标epoxyisoindolo [2,1-一个]四氢喹啉,产率中等。进行合成产物的氧化和芳构化。