Manganese(II) salts as efficient catalysts for chemo selective transesterification of β-keto esters under non-conventional conditions

Transesterification of beta-ketoesters with various alcohols has been studied under conventional and nonconventional conditions using desktop chemicals such as Mn(II) salts as catalysts. These methods offered transesterification of beta-ketoesters in good yields with dramatic rate accelerations and reduced reaction times. The developed protocols under nonconventional methods such as sonication and microwave irradiation are highly promising compared with the existing procedures. (c) 2012 Elsevier Ltd. All rights reserved.