e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
Tetrahedron letters
Double Wittig reactions with 4-carboxybutylidene triphenylphosphorane as the key step in the synthesis of benzene derivatives metadisubstituted with ωω'- …
Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Using a double Wittig reaction from diformylbenzene derivatives, a direct synthetic way to 1,3-di(5-carboxypent-1-yl)benzene compounds is discussed. ... 4-carboxybutyltriphenylphosphonium bromide was prepared by refluxing 5-bromovaleric acid and triphenyl phosphine in ...