Application of Organolithium and Related Reagents in Synthesis. Part 22<sup>1</sup>. Synthetic Strategies Based on Ortho-Aromatic Metallation. A Concise Regiospecific Conversion of Benzoic Acids into the 4-Pyridyl-2<i>H</i>-Phthalazin-1-Ones
作者:J. Z. Brzezinski、J. Epsztajn、A. D. Bakalarz、A. Lajszczak、Z. Malinowski
DOI:10.1080/00397919908085788
日期:1999.2
Abstract The synthesis of phthalazin-1-ones 6, 7, 8 via the reaction of 3-hydroxyisoindolin-l-ones 3, 4, 5 with hydrazine hydrate is described. Starting compounds 3, 4, 5 were regiospecifically prepared upon the lithiation (n-BuLi) of the benzanilides 1 and subsequently the reaction of the dilithiated anilides 2 with methyl pyridinecarboxylates.
Application of Organolithium and Related Reagents in Synthesis. Part 23: Synthetic Strategies Based on ortho-Aromatic Metallation. Synthesis of 4b-Arylisoindolo[2,1-a]quinoline derivatives
作者:Jan Epsztajn、Andrzej Jóźwiak、Paweł Kołuda、Izabela Sadokierska、Ilona D. Wilkowska
DOI:10.1016/s0040-4020(00)00403-8
日期:2000.6
The synthesis of the 2-aryl-3-hydroxyisoindol-1-ones 3 and their successive conversion via the reaction with 1-methoxy-1-trimethylsilyloxyethene in the presence of titanium(IV) chloride into 3-carboxymethylphthalimides 7 and subsequent cyclization via sequential treatment with oxalyl chloride and aluminium chloride as a way of regiospecific transformation of the benzenecarbocylic acids into the corresponding
2-芳基-3-羟基异吲哚-1-酮3的合成及其在氯化钛(IV)存在下通过与1-甲氧基-1-三甲基甲硅烷基氧化乙烯的反应连续转化为3-羧甲基邻苯二甲酰亚胺7和随后通过顺序环化描述了用草酰氯和氯化铝进行的苯甲酰氯的处理,作为苯碳氢化合物向相应的异吲哚并[ 2,1- a ]喹啉-5,11-二酮5的区域特异性转化的方法。