Iron-Catalyzed Triazole-Enabled C-H Activation with Bicyclopropylidenes
C-H/C-C functionalizations with oxymethylated bicyclopropylidenes were accomplished with an iron catalyst under external oxidant-free conditions. The combination of the unique reactivity of bicyclopropylidenes with a robust iron(II) catalyst enabled C-C c
Mo, Jiayu,Messinis, Antonis M.,Oliveira, Joa? C. A.,Demeshko, Serhiy,Meyer, Franc,Ackermann, Lutz
Preparation of functionally substituted bicyclopropylidenes
Deprotonation of bicyclopropylidene (1) and 7-cyclopropylidenedispiro[2.2.2.1]heptane (2) with butyllithium in tetrahydrofuran affords lithiobicyclopropylidenes, which react with electrophilic reagents to give the correspondingly substituted bicyclopropylidenes 3, 4 in high yields. No selectivity was observed in deprotonation of unsymmetrically spiroanellated bicyclopropylidenes such as 1-cyclopropylidenespiropentane (5) and 1-cyclopropylidenedispiro-[2.0.2.1]heptane (6).
De Meijere,Kozhushkov,Zefirov
p. 681 - 683
(2007/10/02)
More Articles about upstream products of 151964-06-6