ChemInform Abstract: Stereoselective Access to (Z)‐α, γ‐Diazido‐α, β‐unsaturated Esters via Lewis Acid‐Mediated 1, 3‐Diazidation of α, α‐Dimethoxy‐β, γ‐unsaturated Esters with Trimethylsilyl Azide. Issue 35 (September 2015)