1. The poly ( p phenylene borane ) and poly ( m phenylene borane ) are synthesized by the modified organometallic route.

2. The asymmetric reduction of ketosulfone with borane catalyzed by oxazaborolidine is computed by means of the semi-empirical MNDO method.

3. Asymmetric borane reduction of prochiral ketones is a good process to the synthesis of enantiomerically enriched secondary alcohols.

4. Both stereo effect and electron effect of borane on the activity of ethylene polymerization were investigated.

5. The structual rule of borane were advanced based on the number of above electron, we discussed electron structure of borane(http:///borane.html), dense borane and hetero—borane.

6. Both catalyst - borane - ketone adducts and catalyst - alkoxyborane adducts have four stable structures.

7. Thus we cooperate to study the function and mechanism of this catalyst in the asymmetric borane reduction reaction, and the following results are obtained.

8. The catalyst is a twisted chair structure and reacts with borane at the N site of the catalyst to form catalyst borane adduct. The formation reaction is exothermic.

9. The chiral oxazaborolidines that formed by the reaction of the new ligands above with borane can be used in the asymmetry catalytic reaction prochiral ketones.

10. Elementary reaction pathways of the reductants such as dimethylamine borane, hypophosphite ion, formaldehyde, and titanium trichloride were quantitatively examined in terms of the heat of reaction.

11. Boron - substituted polyaromatic mesophase prepared by co - pyrolysis of a tar pitch with pyridine - borane complex under autogeneous pressure.

12. The researchers worked together to develop a method of recycling the ammonia borane by reintroducing hydrogen to the chemical hydride.

13. Boron substituted polyaromatic mesophase was prepared by co pyrolysis of a coal tar pitch with pyridine borane complex under autogeneous pressure.

14. Meanwhile, the topological theory and polyhedral skeletal electron-pair theory propelled the further development of borane chemistry and expanded the scope of structural chemistry.

15. Boron substituted mesophase pitches were synthesized by co pyrolysis of different coal tar pitches with pyridine borane complex.

16. Asymmetric hydroboration is a kind of widely applied and valuable reaction, in which borane reduction of prochiral ketones reaction is an important method.