1160614-72-1Relevant articles and documents
Investigation of the scope and regiochemistry of alkynylboronate cycloadditions with sydnones
Browne, Duncan L.,Vivat, Jerome F.,Plant, Andrew,Gomez-Bengoa, Enrique,Harrity, Joseph P. A.
supporting information; experimental part, p. 7762 - 7769 (2009/10/16)
The cycloaddition of alkynylboronates and sydnones provides a convenientand highly regioselective method for the synthesis of a broad range of di-, tri-, and tetrasubstituted pyrazole boronic esters. The origins of an observed regiochemical divergence in the reactions of terminal alkyny lboronates with their more substituted analogues have been studied by DFT methods.