Rhodium-Catalyzed Allylic Substitution Reactions with Indium(III) Organometallics
作者:Ricardo Riveiros、Rubén Tato、José Pérez Sestelo、Luis A. Sarandeses
DOI:10.1002/ejoc.201200104
日期:2012.5
novel rhodium-catalyzed allylic substitution reaction using indium organometallics is reported. Aryl- and heteroarylindium reagents reacted in THF at 80 °C with primary and secondary allyl halides and their derivatives under rhodium(I) catalysis to afford the α-substituted products in good yields and with high regio- and stereoselectivity. The reaction takes place with substoichiometric amounts of
Copper-Catalyzed Multicomponent Coupling of Organoindium Reagents with Nitrogen-Containing Aromatic Heterocycles
作者:Ramsay E. Beveridge、Daniel A. Black、Bruce A. Arndtsen
DOI:10.1002/ejoc.201000231
日期:2010.7
mild, copper-catalyzed coupling of organoindium reagents with nitrogen-containingaromaticheterocycles and chloroformates is described. This reaction proceeds with a range of organoindium reagents, yielding predominately or exclusively the 1,4-addition products with pyridine. In addition, a range of other nitrogen-containingheterocycles can be employed in this reaction (e.g. benzoxazole, benzothiazole
Palladium-Catalyzed Cross-Coupling Reaction of Triorganoindium Reagents with Propargylic Esters
作者:Ricardo Riveiros、David Rodríguez、José Pérez Sestelo、Luis A. Sarandeses
DOI:10.1021/ol060192o
日期:2006.3.1
[reaction: see text] Triorganoindiumreagents (R(3)In) react with propargylic esters under palladium catalysis via an S(N)2' rearrangement to afford allenes in good yields and with high regioselectivity. The reaction proceeds smoothly at room temperature with a variety of R(3)In (aryl, alkenyl, alkynyl, and methyl). When chiral, nonracemic propargylic esters are employed, the reaction takes place with
Synthesis of Allenes by Palladium-Catalyzed S<sub>N</sub>2′ Reaction of Indium Organometallics with Propargylic Esters
作者:José Sestelo、Luis Sarandeses、Ricardo Riveiros
DOI:10.1055/s-2007-983849
日期:2007.11
Allenes have been efficiently prepared by the reaction of propargylic esters (benzoates, acetates, carbonates) with triorganoindiumcompounds (R 3 In) under palladium catalysis, via an 5 N 2' rearrangement. The reaction proceeds smoothly at room temperature with a variety of aryl-, alkenyl-, and alkynylindium reagents. The yields obtained are high and the regioselectivity is complete both in the case
通过炔丙基酯(苯甲酸酯、乙酸酯、碳酸酯)与三有机铟化合物(R 3 In)在钯催化下通过 5 N 2' 重排反应有效地制备了丙二烯。该反应在室温下使用各种芳基、烯基和炔基铟试剂顺利进行。在末端和非末端炔丙基酯的情况下,获得的产率很高并且区域选择性是完全的。
General Approach to the Coupling of Organoindium Reagents with Imines via Copper Catalysis
作者:Daniel A. Black、Bruce A. Arndtsen
DOI:10.1021/ol060277p
日期:2006.5.1
A copper-catalyzed three-component coupling of organoindium reagents with imines and acid chlorides is described. This mild carbon-carbon bond forming reaction requires only one-third of an equivalent of indium reagent to proceed in high yield, with the sole byproduct being indium trichloride. The reaction demonstrates broad generality, with aryl-, heteroaryl-, vinyl-, and alkylindiums, as well as functionalized imines and acid chlorides, all providing alpha-substituted amides or N-protected amines in a single step.