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. 2019 Sep 6;9(48):28112–28118. doi: 10.1039/c9ra05390e

Catalytic performance of organotin compounds for the Fries rearrangement of DPCa.

Catalysts DPC conversion (%) Yield (%)
PS XA Phenol
— 7 — — 6
BuSnO(OH) 92 53 31 7
Bu2SnO 88 51 30 7
Bu2Sn(OCOC11H23)2 82 49 25 7
BuSnCl3 73 45 24 4
Bu3SnOSnBu3 57 35 17 6
Bu3SnCl 41 26 12 3
a

Reaction conditions: DPC: 15 g; mass ratio of Sn to DPC: 1%; reaction time: 8 h; temperature: 220 °C; pressure: 0.50 MPa.