Indium-Catalyzed Reductive Bromination of Carboxylic Acids Leading to Alkyl Bromides
摘要:
The combination of 1,1,3,3-tetramethyldisiloxane (TMDS) and trimethylbromosilane (Me3SiBr) with a catalytic amount of indium bromide (InBr3) undertook direct bromination of carboxylic acids, which produced the corresponding alkyl bromides in good to excellent yields. The reducing system was tolerant to several functional groups.
Indium-Catalyzed Reductive Bromination of Carboxylic Acids Leading to Alkyl Bromides
摘要:
The combination of 1,1,3,3-tetramethyldisiloxane (TMDS) and trimethylbromosilane (Me3SiBr) with a catalytic amount of indium bromide (InBr3) undertook direct bromination of carboxylic acids, which produced the corresponding alkyl bromides in good to excellent yields. The reducing system was tolerant to several functional groups.
The 1,1,3,3-tetramethyldisiloxane/Pd/C system is reported here as a new method to accomplish the ring-opening of ethers and epoxides to give protected alcohols. The approach can also be used for the protection of primary or secondary alcohols and for the reduction of aldehydes and ketones to obtain alkoxysilanes.