dmad

dmad

1

And it also greatly broadened the synthesis method which only used DMAD and its derivatives as the substrate . Then , we introduced aldehyde in indolizine through Vilsmeier reaction .

这也大大拓宽了以往只是以DMAD及其衍生物为底物的合成方法。
2

Protoporphyrin IX dimethyl ester ( 1 ) reacted in a [ 4 + 2 ] cycloaddition with strongly activated dienophile & dimethyl acetylenedicarboxylate ( DMAD ) to give the corresponding chlorins with the ring A and B isomers .

原卟啉IX二甲酯（1）与强亲二烯体丁炔二酸二甲酯（DMAD）进行〔4＋2〕环化加成生成相应的环A或环B二氢卟吩异构体。