S1 Supporting Information for Gold-Catalyzed Intramolecular Regioselective 7-exo-dig Cyclization to Access 3-Methylene-3,4-dihydrobenzo[b]oxepinones N. S. V. M. Rao Mangina, †,‡ Veerabhushanam Kadiyala, †,‡ Ravinder Guduru, †,‡ Kommuru Goutham, †,‡ Balasubramanian Sridhar ǁ and Galla V. Karunakar* ,†,‡ † Crop Protection Chemicals Division, ‡ Academy of Scientific and Innovative Research, and ǁ Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India. Contents: 1.1 General S2 1.2 General procedure for synthesis of benzooxepinones ( 2a-2aa and 4a-4d) S3 1.3 Spectroscopic data of benzooxepinones (2a-2aa and 4a-4d) S4 1.4 Copies of 1 H and 13 C NMR spectra (2a-2aa and 4a-4d) S18 1.5 X-ray crystallography data of 2h S49 Electronic Supplementary Material (ESI) for Chemical Communications