Entry

Substrate

1 mM

Mole of NaBH₄ (mM)

Time

(min)

Temperature

(˚C)

(Derivative)

% yield

Diol*

% yield

1

1

1.1

5

−15 to −10

(3) 60

(5) 0

2

1

2.0

5

−15 to −10

(3) 100

(5) 0

3

1

4.0

5

−15 to −10

(3) 98

(5) Trace*

4

1

5.0

5

−15 to −10

(3) 98

(5) Trace*

5

1

2.0

10

−15 to −10

(3) 100

(5) 0

6

1

2.0

15

−15 to −10

(3) 100

(5) 0

7

1

2.0

15

−15 to −0

(3) 100

(5) 0

8

1

2.0

15

−15 to −0

(3) 95

(5) ~5*

9

6

2.0

5

−15 to −10

(6) 0

(7) 100

10

8

2.0

5

−15 to −10

(8) 60

(9) 40