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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 2.

Norrish-Yang Reactivity of Triketone 5.

graphic file with name nihms467019t2.jpg
entry λmax
(nm)		 Time
(h)		 Yielda of 7 (%
brsm)		 Conversiona of
5 (% )
1 254 72 12 57
2 300 72 15 69
3 350 72 n/r 0
4 300b 72 39c >99
5 254b 72 18 72
a

Dermined by 1H NMR

b

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

c

Isolated yield