... (1) Sundberg, R. J. In The Chemistry of Indoles; Academic Press: New York, 1970; p 94. 0022-326319111956-0871$02.50/0 991,56, 871-872 Scheme I 871 OZN ~ c H 2 N ( c H 3 ' 2 - ... Chem. SOC. 1956, 78, 969. (6) Albright, JD; Snyder, HR J. Am. Chem. SOC. 1959,81, 2239. ...