作者:Daniel C. Schmitt、Alexandria P. Taylor、Andrew C. Flick、Robert E. Kyne
DOI:10.1021/acs.orglett.5b00266
日期:2015.3.20
1,3-Diols engage in ruthenium-catalyzed hydrogen transfer in the presence of alkyl hydrazines to provide 1,4-disubstituted pyrazoles. Regioselective synthesis of unsymmetrical pyrazoles from beta-hydroxy ketones is also described.