ChemInform Abstract: SYNTHESIS OF A NOVEL SERIES OF (ARYLOXY)PROPANOLAMINES: NEW SELECTIVE β2‐BLOCKING AGENTS

Abstract

Durch Cycloaddition der den Verbindungen (I) entsprechenden Arine mit den Enolaten (II) erhält man die Schlüsselverbindungen (III) und (IV), die über die Phenole (V) in die Phenolether (VI) umgewandelt werden.

Synthesis of Tetrahydrobiphenylene <i>via</i> Pd(0)-Catalyzed C(<i>sp</i>²)–H Functionalization

“…Caubère and colleagues have reported that di-and tetrahydrobiphenylenes showed cytotoxicity against human lymphoblasts and L1210 murine leukemia cell lines. [6][7][8] For the synthesis of hexahydrobiphenylenes, a facial [2+2] cycloaddition of benzyne with an enamide 9) and an enolate 10) has been reported under strong base conditions (Chart 1). The resultant hexahydrobiphenylenes could be converted to tetrahydrobiphenylenes under dehydration conditions.…”