Stereoselective reduction of β hydroxyketones to 1,3-diols highly selective 1,3-asymmetric induction via boron chelates

Highly selective asymmetric induction can be achieved in the reduction of acyclic β-hydroxyketones via boron chelates. Treatment of β-hydroxyketones ( 1) with tributyl or tri-isobutylborane and successively with sodium borohydride affo...

K Narasaka，FC Pai - 《Tetrahedron》

Stereoselective reductions of substituted cyclohexyl and cyclopentyl carbon-nitrogen π systems with hydride reagents

Reductions of 3- and 4-substituted cyclohexyl imines, iminium salts, and enamines (via iminium ions) with various hydride reagents reveal that while small ...

RO Hutchins，WY Su，R Sivakumar，... - 《Journal of Organic Chemistry》

1,3-Syn diastereoselective reduction of β-hydroxyketones utilizing alkoxydialkylboranes - ScienceDirect

Sodium borohydride reduction of β-hydroxyketones in presence of alkoxydialkylboranes 1–7 as complexing agents, produced 1,3- syn diols in at least 98:2 ratio. As illustrated with examples 8–17 this method is quite general and super...

KM Chen，GE Hardtmann，K Prasad，... - 《Tetrahedron Letters》

Synthesis and characterization of [7]circulene

A new method is developed to obtain crystalline nanorods of WO3 using tungsten organometallic compound, tungsten hexacarbonyl, at a low temperature of arou...

K Yamamoto，T Harada，M Nakazaki，... - 《Journal of the American Chemical Society》

Reactions of carbon dioxide with sodium and lithium borohydrides

Sodium borohydride reacts with excess carbon dioxide in the absence of solvent at temperatures somewhat above room temperature to form a fluffy white solid which is thought to be sodium formatomethoxyborate, (NaBO(OCH 3)(O 2CH). When the...

T Wartik，RK Pearson - 《Journal of Inorganic & Nuclear Chemistry》