Table 2.
Yields shown are for pure isolated material, except for 33 which was determined by quantitative NMR. Reactions were conducted on 1 mmol scale in m-xylene (0.5 M), except as noted. Compound 22 (3 mmol); 28–30 (1 gram); 33 (0.5 mmol).
Yields shown are for pure isolated material, except for 33 which was determined by quantitative NMR. Reactions were conducted on 1 mmol scale in m-xylene (0.5 M), except as noted. Compound 22 (3 mmol); 28–30 (1 gram); 33 (0.5 mmol).