Citation: T. Ohta et al., THE CHEMISTRY OF INDOLES .64. AN UNUSUAL 1-OXA-2-SILA-3-CYCLOPENTENE RING FORMATION IN THE PALLADIUM-CATALYZED REACTION OF THALLIUM COMPOUND WITH 2-METHYL-4-TRIMETHYLSILYL-3-BUTYN-2-OL, Chemistry Letters, (5), 1993, pp. 797-798