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I am currently studying methods of synthesising ketones and aldehydes and one of the methods is Friedel-Crafts acylation. However, my teacher told our class that we can't use this to make benzaldehyde as formyl chloride, HCOCl, is unstable. Why is HCOCl unstable?

orthocresol
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math and physics forever
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  • For formylation you'd need HCOCl - it's indeed unstable, but it can be done nontheless. – Mithoron Jul 02 '22 at 19:45
  • Oh,OK. Thank you. But why is it unstable though? – math and physics forever Jul 02 '22 at 19:50
  • The problem of the stability is not yet perfectly understood in chemistry ?. Why is SO not really stable at room temperature ? Why is NO so stable at room temperature ? Why does HNO not exist long enough to be stored in a bottle ? – Maurice Jul 02 '22 at 20:33

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