sodium tetrahydroborate; sodium periodate 1.) THF, water, 0 deg C, 50 min, 2.) THF, water, 0 deg C, 30 min; Yield given. Multistep reaction;

<b>Multi-step reaction with 4 steps<br /> </b>1: tetrahydrofuran / 0 &deg;C<br />2: 66 percent / pyridine<br />3: 3percent methanolic hydrochloric acid<br />4: 2percent NaOH in methanol<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 3percent methanolic hydrochloric acid<br />2: 2percent NaOH in methanol<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: 66 percent / pyridine<br />2: 3percent methanolic hydrochloric acid<br />3: 2percent NaOH in methanol<br /> <br /> &nbsp;