1133768-70-3Relevant articles and documents
Sulfur ylides 15. Intramolecular cyclization of new keto-stabilized sulfur bis-ylide
Galin,Sakhautdinov,Khalikov,Lakeev,Maidanova,Fatykhov
, p. 2479 - 2481 (2008/12/23)
New sulfur bis-ylide was obtained from 3-amino-3-phenylpropionic acid and pyromellitic dianhydride. Its intramolecular cyclization proceeds regioselectively, leading to 3,4,11,12-tetrahydro-2H,6H-indolizino[2,1-f] pyrido[2,1-a]isoindole derivative in 66% yield. Phosphorus bis-ylide of similar structure gives a cyclization product in 10% yield.