Application of organolithium and related reagents in synthesis.: Part 21.: Synthetic strategies based on ortho-aromatic metallation.: A concise regiospecific synthesis of arylnaphthalanes as precursors of naphthylisoquinoline alkaloids

被引:5
|
作者
Epsztajn, J [1 ]
Józwiak, A [1 ]
Szczesniak, AK [1 ]
机构
[1] Univ Lodz, Dept Organ Chem, PL-90136 Lodz, Poland
关键词
D O I
10.1039/a803246g
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A novel procedure is described for synthesising regioselectively substituted biaryls such as 12. It involves converting phthalides 4, via cycloaddition of dimethyl acetylenedicarboxylate to 1-arylisobenzofurans 6, into dimethyl 1-arylnaphthalene-2,3-dicarboxylates 8, which upon hydrolytic decarboxylation give lactones 11 and then esters 12.
引用
收藏
页码:2563 / 2567
页数:5
相关论文
共 14 条