Robuta

https://scholars.hkbu.edu.hk/en/publications/catalyst-free-aza-michael-addition-of-azole-to-%CE%B2%CE%B3-unsaturated-%CE%B1-k/ Catalyst-free aza-Michael addition of azole to β,γ-unsaturated- α-keto ester: An efficient access... michael addition keto ester catalyst free aza