we describe here a suitable approach for the synthesis of n-unsubstituted monocyclic b-lactams under mild reaction conditions by the annelation of imines with substituted acetylchlorides. in this method the reaily available phtalimidoacetyl chloride were allowed to react with - dibenzylideneiminotoluene (hydrobenzamide) in the presence of an equimolar amount of triethylamine in refluxing toluen...

One of the issues discussed in the international economics literature is the type and amount of imported goods. The main reason for these disputes is the negative impact of imports on the domestic economy. On the other hand, some experts believe that there are some types of import that do not lead to increase the dependency and not reduce the sustainable development of the importing country. Th...