Reaction of O-arylhydroxylamine hydrochlorides with either cyclic or acyclic ketones in the presence of methanesulfonic acid leads directly to the benzofuran derivative via a proposed one-pot condensation-rearrangement-cyclisation reaction sequence in good to excellent yields.
                                    O-芳基
羟胺盐酸盐与环状或非环状酮在美克酸存在下反应,可以通过一种提议的一锅式缩合-重排-环化反应序列,直接得到
苯并呋喃衍
生物,产率良好到优异。