Highly regioselective decarboxylative Claisen rearrangement reactions of diallyl 2-sulfonylmalonates
摘要:
The decarboxylative Claisen rearrangement of a range of substituted diallyl 2-sulfonylmalonates is described. The substrates are made by C-carboxylation of the corresponding allyl sulfonylacetates with allyl para-nitrophenyl carbonates. The reactions display a high degree of regioselectivity, with allylic substituents possessing electron-rich substituents at the allyl three-position rearranging preferentially. (C) 2007 Elsevier Ltd. All rights reserved.
Highly regioselective decarboxylative Claisen rearrangement reactions of diallyl 2-sulfonylmalonates
摘要:
The decarboxylative Claisen rearrangement of a range of substituted diallyl 2-sulfonylmalonates is described. The substrates are made by C-carboxylation of the corresponding allyl sulfonylacetates with allyl para-nitrophenyl carbonates. The reactions display a high degree of regioselectivity, with allylic substituents possessing electron-rich substituents at the allyl three-position rearranging preferentially. (C) 2007 Elsevier Ltd. All rights reserved.