Table 1. ATH Reductions of Ketones.

substrate	catalyst	s/c	temp/ °C	t/ h	conv %a	ee %a
13	4	1000	60	2	100	96 (R)
13	4	100	28	4.5	99	97 (R)
13	9	1000	60	4	100	89 (R)
13	9	100	28	8	99	91 (R)
14	4	1000	60	3.5	100	97 (R)
14	9	1000	60	5	100	88 (R)
15	4	1000	60	1.5	100	96 (R)
16	4	1000	60	2	100	98 (R)
16	9	1000	60	3	99	96 (R)
17	4	1000	60	2	100	98 (S)
17	9	1000	60	2	100	95 (S)
18	4	1000	60	1	99	97 (S)
18	9	1000	60	2	99	94 (S)
19	4	1000	60	1	100	98 (R)
19	9	1000	60	2	99	93 (R)
20	4	1000	60	3	100	99 (R)
21	4	1000	60	2	100	94 (R)
22	4	1000	60	3	100	99 (R)b
22	9	1000	60	3	100	>99 (R)b
23	4	1000	60	5	99	99 (R)
23	9	1000	60	5	100	99 (R)
24	4	1000	60	1.5	99	88 (R)
25	4	1000	60	3	100	99 (R)
25	9	1000	60	7	100	96 (R)
26	4	1000	60	5	100	37 (S)c
26	9	1000	60	6	100	73 (S)c
26	9	100	28	21.5	99	74 (S)

^aConv % and ee % calculated by chiral GC analysis unless otherwise indicated.

^bee % calculated by chiral HPLC analysis.

^cee % calculated for acetate derivative.