... (20) Ingersoll, AW Organic Syntheses; John ... 2.00 (2 H, q, J = 6.6 Hz, C5-H), 2.35 (2 H, t, J = 6.8 Hz, CyH ... Mark A. Findeis* and Emil Thomas Kaiser2 Laboratory of Bioorganic Chemistry and Biochemistry, The Rockefeller University, 1230 York Avenue, New York, New York 10021 ...