Fig. 4. Scope of electrophiles for the formal anti-hydrozirconation; reaction conditions: (i) Cp₂ZrHCl (62 mg, 0.24 mmol, 1.2 eq.), CH₂Cl₂ (1.5 mL), A-9 (36 mg, 0.2 mmol, 1.0 eq.) in CH₂Cl₂ (0.5 mL); (ii) irradiation (λ = 400 nm), 45 min; (iii) E⁺ (DCl, NCS or NIS) (0.22 mmol, 1.1 eq.), 15 min; isolated yields of the Z : E-mixture are reported.