Institute of Chemical Research of Catalonia (ICIQ), 43007 Tarragona, Spain.
J Am Chem Soc. 2010 Sep 1;132(34):11881-3. doi: 10.1021/ja104743k.
The gold(I)-catalyzed cyclization of 1-(prop-2-yn-1-yl)-2-alkenylbenzenes substituted at the benzylic position with OR groups gives 1,3-disubstituted naphthalenes with concomitant fragmentation of the alkene. One of these annulations proceeds by a retro-cyclopropanation that leads to free gold(I) carbenes.
金(I)催化的 1-(丙-2-炔-1-基)-2-烯基苯在苄位取代的 OR 基团的环化反应得到 1,3-二取代的萘,同时伴有烯烃的断裂。这些环化反应中的一种是通过反环丙烷化进行的,导致游离的金(I)卡宾。