Supporting Information One-Pot Access to Benzo[a]carbazoles via Palladium(II)-Catalyzed Hetero- and Carboannulations Moumita Jash, Bimolendu Das, and Chinmay Chowdhury* Organic & Medicinal Chemistry Division, Indian Institute of Chemical Biology (CSIR), 4, Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India E-mail: chinmay@iicb.res.in Table of Contents 1. Synthesis of ortho-ethynylaniline derivatives S3 (Scheme S1)…..................................S2 2. Preparation of the starting substrates 9 (Scheme S2)....................................................S2 3. Preparation of the Starting Substrates 10 (Scheme S3).................................................S2 4. ORTEP diagrams of products 5b, 5g and 6f……………………………………….S3-S4 5. X-Ray crystallographic information of products 5b, 5g and 6f............................... S4-S7 6. References……………...……………………………………………...………………… S8 7. Copies of NMR and HRMS Spectra NMR Spectra of Compounds 9a-9n……………………………………...... S9-S22 HRMS (EI+) Spectra of 9n……….……………….……………………………S23 NMR Spectra of Compounds 10a-10n …………………………….……...S24-S37 NMR Spectra of Compounds 5a-5n………………………………...…….S38-S51 NMR Spectra of Compounds 6a-6n………………………………………S52-S66 HRMS (EI+) Spectra of 6i…………………………………………….……….S61 HRMS (EI+) Spectra of 6n ….. ………………………………………………...S67 NMR Spectra of Compound 11………………………………….………….....S68 S1