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  2. Aldehyde - Wikipedia

    en.wikipedia.org/wiki/Aldehyde

    Aldehyde structure. In organic chemistry, an aldehyde (/ ˈ æ l d ɪ h aɪ d /) is an organic compound containing a functional group with the structure R−CH=O. [1] The functional group itself (without the "R" side chain) can be referred to as an aldehyde but can also be classified as a formyl group. Aldehydes are a common motif in many ...

  3. Cannizzaro reaction - Wikipedia

    en.wikipedia.org/wiki/Cannizzaro_reaction

    Due to the strongly alkaline reaction conditions, aldehydes that have alpha hydrogen atom(s) instead undergo deprotonation there, leading to enolates and possible aldol reactions. Under ideal conditions the reaction produces 50% of both the alcohol and the carboxylic acid (it takes two aldehydes to produce one acid and one alcohol). [5]

  4. Stephen aldehyde synthesis - Wikipedia

    en.wikipedia.org/wiki/Stephen_aldehyde_synthesis

    Stephen aldehyde synthesis: Reaction mechanism. By addition of hydrogen chloride the used nitrile (1) reacts to its corresponding salt (2). It is believed that this salt is reduced by a single electron transfer by the tin(II) chloride (3a and 3b). [3] The resulting salt (4) precipitates after some time as aldimine tin chloride (5).

  5. Hydroformylation - Wikipedia

    en.wikipedia.org/wiki/Hydroformylation

    Hydroformylation of an alkene (R 1 to R 3 organyl groups (i. e. alkyl-or aryl group) or hydrogen). In organic chemistry, hydroformylation, also known as oxo synthesis or oxo process, is an industrial process for the production of aldehydes (R−CH=O) from alkenes (R 2 C=CR 2).

  6. Hydrazone - Wikipedia

    en.wikipedia.org/wiki/Hydrazone

    Hydrazones are a class of organic compounds with the structure R 1 R 2 C=N−NH 2. [1] They are related to ketones and aldehydes by the replacement of the oxygen =O with the = N−NH 2 functional group. They are formed usually by the action of hydrazine on ketones or aldehydes. [2] [3]

  7. Grignard reagent - Wikipedia

    en.wikipedia.org/wiki/Grignard_reagent

    In cases where the Grignard reagent is adding to an aldehyde or a prochiral ketone, the Felkin-Anh model or Cram's Rule can usually predict which stereoisomer will be formed. With easily deprotonated 1,3- diketones and related acidic substrates, the Grignard reagent RMgX functions merely as a base, giving the enolate anion and liberating the ...

  8. Benzoin condensation - Wikipedia

    en.wikipedia.org/wiki/Benzoin_condensation

    In organic chemistry, the benzoin addition is an addition reaction involving two aldehydes (−CH=O). The reaction generally occurs between aromatic aldehydes or glyoxals (OCH=CHO), [1] [2] and results in formation of an acyloin (−C(O)CH(OH)−). In the classic example, benzaldehyde is converted to benzoin (PhCH(OH)C(O)Ph). [3]

  9. Leuckart reaction - Wikipedia

    en.wikipedia.org/wiki/Leuckart_reaction

    The Leuckart reaction is the chemical reaction that converts aldehydes or ketones to amines. The reaction is an example of reductive amination. [1] The reaction, named after Rudolf Leuckart, uses either ammonium formate or formamide as the nitrogen donor and reducing agent. It requires high temperatures, usually between 120 and 130 °C; for the ...