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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 1.

Norrish-Yang Reactivity of Tetraketone 1.

graphic file with name nihms467019t1.jpg
entry λmax
(nm)		 Time
(min.)		 Isolated yield of product (%)
3 4
1 254 45 33 10
2 300 90 63 13
3 350 135 30 5
4 300a 45 56 <1
a

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