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In the same year, M. M. Midland discovered B-3-alpha-pinanyl-9-BBN as the reducing agent, which could be easily available by reacting (+)-alpha-pinene with 9-BBN. The new reducing agent was later commercialized by Aldrich Co. under the name Alpine Borane and the asymmetric reduction of carbonyl groups with either enantiomer of Alpine-Borane is ...
This reagent is generated by treating 9-BBN with α-pinene. [2] This sterically crowded chiral trialkylborane can stereoselectively reduce aldehydes in what is known as the Midland Alpine borane reduction, or simply the Midland reduction. [3] C 8 H 12 B-pinanyl + RCDO → C 8 H 12 BOCHDR + (+)-d-pinene. Hydrolysis of the resulting borinic ester ...
9-Borabicyclo[3.3.1]nonane or 9-BBN is an organoborane compound. This colourless solid is used in organic chemistry as a hydroboration reagent. The compound exists as a hydride-bridged dimer, which easily cleaves in the presence of reducible substrates. [1] 9-BBN is also known by its nickname 'banana borane'. [2]
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A viral post shared on X claims Colorado Republican Rep. Lauren Boebert purportedly said Egypt owns the Panama Canal. Verdict: False The claim is false and originally stems from an account on X ...
Every generation views their health and wellness differently. For older Americans, mental health diagnoses are becoming more prevalent. Between 2019 and 2023, the 65+ age group collectively ...
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A ceasefire between Turkey and the U.S.-backed Kurdish Syrian forces (SDF) around the northern Syrian city of Manbij has been extended until the end of this week, State Department spokesperson ...
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