Sterically demanding boranes offer enhanced selectivity. One example of a sterically demanding borane (9-BBN) is generated by the double addition of borane to 1,5-cyclooctadiene: 9-Borabicyclo[3.3.1]nonane. The reactivity and selectivity of the borane reagent may be modified through the use of borane-Lewis base complexes. Recent Literature

9-Borabicyclo[3.3.1]nonane | C8H14B | CID 6327450 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

9-Borabicyclo[3.3.1]nonane is a mild reagent for the reduction of carbonyl compounds, acid chlorides and alkenes. As 9-BBN does not form complexes with tertiary amines, a stoichiometric amount of the reagent is sufficient for the complete reduction of amides to amines.

Bulk and Prepack available | Aldrich-151076; 9-Borabicyclo[3.3.1]nonane solution 0.5 M in THF; 9-BBN; CAS No. 280-64-8 (principal component); Explore related products, MSDS, application guides, procedures and protocols at Sigma Aldrich - a one stop solution for all your research & industrial needs.

9-BBN is typically used in organic chemistry for hydroboration-oxidation reactions. 9-BBN is a very useful reagent due to its ability to achieve high regioselectivity in reactions based on steric and electronic factors.

2025年2月8日 · 9-硼双环[3.3.1]壬烷(9-bbn)能与烯烃和炔烃进行加成反应，并且有区域选择性和立体选择性的特点，生成的烷基硼和乙烯基硼又能进行许多种类的反应，成为有机合成的重要的中间体，因此在合成上很有用处。

使用硼氢化试剂 9-bbn 对一取代末端烯烃的反应是如此温和、成熟和高度区域选择性，以至于可以用于多烯烃的硼氢化-氧化反应。 如下图所示： Lindhorst 将糖转化成为八烯丙基醚衍生物后发生硼氢化-氧化反应，可以一次得到带有 8 个伯羟基的树枝状超分子的核心 ...

2021年5月13日 · 9-BBN adds to alkenes and alkynes in an anti-Markovnikov fashion. It is a syn addition with the hydrogen and the borane adding to the same side of the alkene or alkyne. 9-BBN reacting with 2-methyl-3-pentyne to form the alkenylborane.

The size of the silyl groups in alkynylsilanes 48 effects their regio- and chemose-lectivity in hydroboration with 9-borabicyclo[3.3.1]nonane (9-BBN). Alkynylsilanes... Borabicyclo [3.3.1] nonane [280-64-8], 9-BBN (13) is the most versatile hydroborating agent among dialkylboranes.

Tertiary amides can be reduced to amines and aldehydes using alkyboranes 9-BBN and Sia2BH respectively.