enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. 4-Bromothiophenol - Wikipedia

    en.wikipedia.org/wiki/4-bromothiophenol

    4-Bromothiophenol is an organic compound with the formula BrC 6 H 4 SH. It forms colorless crystals. Synthesis 4 ...

  3. Boronic acid - Wikipedia

    en.wikipedia.org/wiki/Boronic_acid

    The general structure of a boronic acid, where R is a substituent.. A boronic acid is an organic compound related to boric acid (B(OH) 3) in which one of the three hydroxyl groups (−OH) is replaced by an alkyl or aryl group (represented by R in the general formula R−B(OH) 2). [1]

  4. 4-Formylphenylboronic acid - Wikipedia

    en.wikipedia.org/wiki/4-Formylphenylboronic_acid

    4-Formylphenyl boronic acid crystallizes in colorless needles [2] or is obtained as an odorless, whitish powder, which dissolves little in cold but better in hot water. The compound is quite stable [4] and readily forms dimers and cyclic trimeric anhydrides, which complicate purification and tend to protodeboronize, a secondary reaction that occurs frequently in the Suzuki coupling, with ...

  5. Borinic acid - Wikipedia

    en.wikipedia.org/wiki/Borinic_acid

    Borinic acid, also known as boronous acid, is an oxyacid of boron with formula H 2 BOH. Borinate is the associated anion of borinic acid with formula H 2 BO −; however, being a Lewis acid, the form in basic solution is H 2 B(OH) − 2. Borinic acid can be formed as the first step in the hydrolysis of diborane: [1] BH 3 + H 2 O → H 2 BOH + H 2

  6. Phenylboronic acid - Wikipedia

    en.wikipedia.org/wiki/Phenylboronic_acid

    Phenylboronic acid or benzeneboronic acid, abbreviated as PhB(OH) 2 where Ph is the phenyl group C 6 H 5 - and B(OH) 2 is a boronic acid containing a phenyl substituent and two hydroxyl groups attached to boron. Phenylboronic acid is a white powder and is commonly used in organic synthesis.

  7. Organoboron chemistry - Wikipedia

    en.wikipedia.org/wiki/Organoboron_chemistry

    Structure of a rare monomeric boron hydride, R = i-Pr. [4] The most-studied class of organoboron compounds has the formula BR n H 3−n. These compounds are catalysts, reagents, and synthetic intermediates. The trialkyl and triaryl derivatives feature a trigonal-planar boron center that is typically only weakly Lewis acidic.

  8. Dying To Be Free - The Huffington Post

    projects.huffingtonpost.com/projects/dying-to-be...

    In fiscal year 2014, SAMHSA, which helps to fund drug treatment throughout the country, had a budget of roughly $3.4 billion dedicated to a broad range of behavioral health treatment services, programs and grants.

  9. Organotrifluoroborate - Wikipedia

    en.wikipedia.org/wiki/Organotrifluoroborate

    The mechanism of organotrifluoroborate-based Suzuki-Miyaura coupling reactions has recently been investigated in detail. The organotrifluoroborate hydrolyses to the corresponding boronic acid in situ, so a boronic acid can be used in place of an organotrifluoroborate, as long as it is added slowly and carefully. [7] [8]