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. Author manuscript; available in PMC: 2008 Aug 26.
Published in final edited form as: Chem Rev. 2007 May 27;107(6):2503–2545. doi: 10.1021/cr0509556

Table 8.

Comparison of the HKR with (salen)Co(OAc) and (salen)Co(OTs) with various epoxides.

graphic file with name nihms-63649-t0027.jpg
epoxide catalyst catalyst
(mol%)a 		time
(h)		 yield
(%)b
graphic file with name nihms-63649-t0028.jpg (salen)Co(OAc) 0.5 16 43
(salen)Co(OTs) 0.15 3 44
(saten)Co(OTs) 0.05 16 45
graphic file with name nihms-63649-t0029.jpg (salen)Co(OAc)c 2.0 48 40
(salen)Co(OTs)c 1.2 48 39
graphic file with name nihms-63649-t0030.jpg (salen)Co(OAc) 0.5 16 43
(salen)Co(OTs) 0.2 16 42
graphic file with name nihms-63649-t0031.jpg (salen)Co(OAc) 2.0 24 43
(salen)Co(OTs) 0.5 16 42
graphic file with name nihms-63649-t0032.jpg (salen)Co(OAc) 0.5 16 47
(salen)Co(OTs) 0.06 16 45
a

Catalyst loading based on racemic epoxide.

b

Isolated yield of >99% ee epoxide based on racemate (theoretical maximum 50%).

c

Reaction at 0-4 °C.