What does AcO stand for in orgo?

[UIUCstudent]

---

Members don't see this ad.

So is this an abbreviation for an ester?

 

[Hah]

Pretty sure it stands for acetic acid

 

[orgohacks]

Pretty sure it stands for acetic acid

Ac stands for the acetyl group, CH3C(O)-

AcOH is acetic acid

AcO (-) is the conjugate base (acetate)

AcO attached to an R group is an ester. For instance EtOAc is ethyl acetate, CH3COOEt

hope this helps - James