I've found these refs:
1) In acqueous media:
Synlett, (2000), 1447-9
2) Yeast-mediated reduction:
JCS Perkin Tr. 1,
(3), (1998), 501-4 and
Aust. J. Chem.,
49(11), (1996), 1257-60
3) With TiCl
3:
Bull. CHem. Soc. Jpn., (1991), 1787-91
4) With borohydrides:
Tetrahedron,
46(21), (1990), 7443-57 and
Tetrahedron Lett.,
(15), (1977), 1317-20 and
JACS, (1954), 76
5) With SnCl
2:
Synth. Comm.,
18(7), (1988), 693-7
6) With NaBH
4:
Synthesis,
(, (1985), 886-7 and
Synth. Comm.,
15(6), (1985), 527-33 and
Synth. Comm.,
14(12), (1984), 1099-104
7) With trialkylborohydrides:
Synth. Comm.,
14(12), (1984), 1093-8