Question

short note on ullman reaction​

Answer 1

The Ullmann reaction or Ullmann coupling is a coupling reaction between aryl halides. Traditionally this reaction is effected by copper, but palladium and nickel are also effective catalysts. The reaction is named after Fritz Ullmann.

Answer 2

Ʀ૯φυíя૯ɖ Ꭺηsฬ૯я :

☄ ᴛʜᴇ ᴜʟʟᴍᴀɴɴ ʀᴇᴀᴄᴛɪᴏɴ ᴏʀ ᴜʟʟᴍᴀɴɴ ᴄᴏᴜᴘʟɪɴɢ ɪs ᴀ ᴄᴏᴜᴘʟɪɴɢ ʀᴇᴀᴄᴛɪᴏɴ ʙᴇᴛᴡᴇᴇɴ ᴀʀʏʟ ʜᴀʟɪᴅᴇs. ᴛʀᴀᴅɪᴛɪᴏɴᴀʟʟʏ ᴛʜɪs ʀᴇᴀᴄᴛɪᴏɴ ɪs ᴇғғᴇᴄᴛᴇᴅ ʙʏ ᴄᴏᴘᴘᴇʀ, ʙᴜᴛ ᴘᴀʟʟᴀᴅɪᴜᴍ ᴀɴᴅ ɴɪᴄᴋᴇʟ ᴀʀᴇ ᴀʟsᴏ ᴇғғᴇᴄᴛɪᴠᴇ ᴄᴀᴛᴀʟʏsᴛs. ᴛʜᴇ ʀᴇᴀᴄᴛɪᴏɴ ɪs ɴᴀᴍᴇᴅ ᴀғᴛᴇʀ ғʀɪᴛᴢ ᴜʟʟᴍᴀɴɴ.

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@ɪтzкнυѕнɪ❤~