A mixture of phenol, sodium and 2-chloroethanol forms 2-phenoxyethanol, add zinc chloride, the product is 2,3-dihydrobenzofuran, yield 50%.

• 用苯酚和钠得到苯酚钠,苯酚钠和2-氯乙醇得到2-苯氧基乙醇,与氯化锌反应得2,3-二氢苯并呋喃,产率50%25。