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. Author manuscript; available in PMC: 2008 Sep 7.
Published in final edited form as: J Am Chem Soc. 2006 Jun 7;128(22):7315–7319. doi: 10.1021/ja060968g

Table 3.

[2+2] Photocycloadditions of 27 and 28

entry enone products solvent/yield/ratio
(1) graphic file with name nihms-61089-t0025.jpg graphic file with name nihms-61089-t0026.jpg graphic file with name nihms-61089-t0027.jpg CH2Cl2 25% 32/33 (3:1)
acetone/H2O 25% 32/33 (>1:20)
(2) graphic file with name nihms-61089-t0028.jpg graphic file with name nihms-61089-t0029.jpg graphic file with name nihms-61089-t0030.jpg CH2Cl2 60% 35/36 (2:1)
acetone/H2O 64% 35/36 (>20:1)

All reactions: hv, Pyrex filter , [3 mM].