The efficient thiourea-catalyzed cross-dehydrogenative coupling of C(sp3)–H with diethylphosphite by using tert-butyl peroxide as a terminal oxidant was explored. This protocol further expands the application scope of H-bond donors and also provides facile access to biologically relevant α-amino phosphonic derivatives.
通过使用叔丁基过氧化物作为末端氧化剂,探索了硫脲催化 C(sp3)-H 与亚磷酸二乙酯的高效交叉脱氢偶联。该协议进一步扩大了 H 键供体的应用范围,并提供了对生物学相关的 α-氨基膦衍生物的轻松访问。
Halogen Bond (XB) Promoted α-Tribromomethylation of <i>N</i>-Aryltetrahydroisoquinolines and Further Cyclization to 5,6-Dihydroindolo[2,1-<i>a</i>]isoquinolines
Using CBr4 as a halogen bond donor and the source of tribromomethyl group, a halogen bond promoted tribromomethylation of N-aryltetrahydroisoquinolines was achieved. This reaction was also extended to the construction of the dibenzopyrrocoline alkaloid skeleton through a one-pot process. The mechanistic study confirmed the existence of the halogen bond.