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Propanoic anhydride

If triphenylmethyl chloride in ether is treated with sodium, a yellow colour is produced due to the presence of the anionic spiecies PhsC". Alternatively, if triphenylmethyl chloride is treated with silver perchlorate in a solvent such as THF, the triphenylmethyl cation is obtained. More conveniently, triphenylmethyl salts, PhsC X", can be obtained as orange-red crystalline solids from the action of the appropriate strong acid on triphenylcarbinol in ethanoic or propanoic anhydride solution. The perchlorate, fluoroborate and hexafluoro-phosphate salts are most commonly used for hydride ion abstraction from organic compounds (e.g. cycloheptatriene gives tropylium salts). The salts are rather easily hydrolysed to triphenylcarbinol. [Pg.406]

Acid Anhydrides. Symmetrical anhydrides of monocarboxylic acids, when unsubstituted, are named by replacing the word acid by anhydride. Anhydrides of substituted monocarboxylic acids, if symmetrically substituted, are named by prefixing bis- to the name of the acid and replacing the word acid by anhydride. Mixed anhydrides are named by giving in alphabetical order the first part of the names of the two acids followed by the word anhydride, e.g., acetic propionic anhydride or acetic propanoic anhydride. Cyclic anhydrides of polycarboxylic acids, although possessing a... [Pg.23]

Chemical Designations - Synonyms Methylacetic anhydride Propanoic anhydride Propionyl oxide Chemical Formula (CH3CH2CO)jO. [Pg.331]

Propanethiol Propane-1-Thiol Propane-2-Thiol 1,2,3-Propanetriol Propanoic Acid Propanoic Anhydride... [Pg.79]

PROPIONIC ANHYDRIDE Methylacetic anhydride, Propanoic anhydride, Propionyl oxide Corrosive Liquid, III 2 2 2 W... [Pg.108]

What is a chiral auxiliary Suggest a feasible stereospecific synthesis for 2R-methylhexanoic acid starting from S-(—)-proline and propanoic anhydride. [Pg.220]

Answer IX-f is an unsymmctrical anhydride [2-chlorobut-anoic 2-mcthyl-3- /M-butylphenyl)propanoic anhydride]. [Pg.130]

Sodium arenetellurolates condensed with aroyl chlorides6 to produce aroyl aryl tellurium derivatives (p. 501). Acetic and propanoic anhydrides reacted similarly7. Butyl aroyl or acyl tellurium compounds were obtained from reactions between lithium (sodium) butanetellurolates and aroyl chlorides6-8, acyl chlorides8, or acetic anhydride9. [Pg.175]

Styrene (%v/v) No Acid Formic Acetic" Propa- noic Acetic Anhydride Propanoic Anhydride... [Pg.225]

SYNS METHYLACETIC ANHYDRIDE PROPANOIC ANHYDRIDE PROPIONIC ACID ANHYDRIDE PROPIONYL OXIDE... [Pg.1183]

See other pages where Propanoic anhydride is mentioned: [Pg.460]    [Pg.484]    [Pg.505]    [Pg.573]    [Pg.607]    [Pg.823]    [Pg.789]    [Pg.2437]    [Pg.2437]    [Pg.258]    [Pg.340]    [Pg.729]    [Pg.753]    [Pg.774]    [Pg.842]    [Pg.876]    [Pg.1092]    [Pg.347]    [Pg.96]    [Pg.96]    [Pg.96]    [Pg.148]    [Pg.632]    [Pg.198]    [Pg.200]    [Pg.25]    [Pg.553]    [Pg.553]    [Pg.383]    [Pg.528]    [Pg.1240]    [Pg.2437]    [Pg.2437]    [Pg.987]    [Pg.333]    [Pg.540]    [Pg.107]   
See also in sourсe #XX -- [ Pg.445 ]

See also in sourсe #XX -- [ Pg.445 ]



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2- Propano

2- propanoic

Acetic propionic anhydride (ethanoic propanoic

Ethanoic propanoic anhydride

Propanoates

Propanoic acid, anhydride

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