However, when a hydroxy substituent is present in the substrate in proximity to the double bond, the zinc coordinates with the hydroxy substituent, directing cy

in simmon smith carbene, Zn show H bonding with polar group such as OH, OR so cyclopropanatin takes place according to stereochemistry of polar group

See the stereochemisty

Hydrogen pahle se tha na. Agar incoming group dash pe gya to Hydrogen wedge pe hi jayega na dear

can someone explain me this statement

hope this will help you 🙏🙏

i didn't understand sir. i could not understand also the diagram