expert r requested to dont post direct ans becaz as we all know the ans explain the mechanism in easy step for
1- how phenyl isocyanide is prepared from aniline how xylene is prep from toluene
2- why and how alkyl, benzyl and allyl halides give ppt while aryl and vinyl halides dont give ppt explain the reason
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When aniline is treated with chloroform and anhydrous zinc chloride, aniline is transformed to phenyl isocyanide (scheme 1).
When toluene is treated with methyliodide and anhydrous aluminium chloride (Friedel craft reaction) a mixture of ortho and para xylene is formed (scheme 2).