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. Author manuscript; available in PMC: 2014 Apr 19.
Published in final edited form as: J Org Chem. 2013 Apr 11;78(8):3821–3831. doi: 10.1021/jo400275p

TABLE 3.

Norrish-Yang reactivity of tetraketone 14.

graphic file with name nihms467019t3.jpg
entry λmax
(nm)		 Time
(h)		 Yield of 15
(%)		 Conversion of
14 (%)
1 254 20 48 100
2 300 12 27 100
3 254a 6 72b 60
4 300a 3 66 100
a

Reaction was carried out in the presence of 1.0 equiv of benzophenone

b

Yield of 15 is based on the recovered 14