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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.
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]
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 ...
9-硼二环[3.3.1]壬烷 Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
B3 (stock exchange), the Bochvar logic in calculus; B03, Alekhine's Defence chess code; B3: Battle by the Bay, a 1996 Street Fighter tournament; B3 oil field, an oil and gas field in the Baltic sea; Model B3 chair, a 1925 German Wassili designer chair; A subclass of B-class stars in stellar classification
Vitamin B 3, colloquially referred to as niacin, is a vitamin family that includes three forms, or vitamers: nicotinic acid (niacin), nicotinamide (niacinamide), and nicotinamide riboside. [1] [2] All three forms of vitamin B 3 are converted within the body to nicotinamide adenine dinucleotide (NAD).
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The festival start of the Biennial of the Moving Image was 2013 with its theme "Expanded Narration". The B3 festival strives to explore the expansion of narration and storytelling in art, games, cinema, TV series, immersion and transmedia. 2013, eleven awards were offered: B3 Honorary Lifetime Achievement Award, BEN Grand Prize, BEN Young Talent Award, and Ultrashort #B3expandednarration and # ...