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acetophenone

acetophenone Sentence Examples

  • He also found that diaceto succinic ester reacts with compounds of the type NH 2 R(R = H, CH 3, OH, NHC 6 H 5, &c.) to form pyrrol derivatives CH3 CO CH CO 2 R, C(CH3) :C C02R A NH 2 R -?- - RN(CH 3 CO CH CO 2 R C(CH3) :C C02R By using compounds of the type NH 2 R and acetophenone acetoacetic ester C 6 H 5 CO CH 2.

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  • ACETOPHENONE, or PHENYL-METHYL KETONE, C8H8O or C6H5CO.CH3, in chemistry, the simplest representative of the class of mixed aliphatic-aromatic ketones.

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  • When heated with the halogens, acetophenone is substituted in the aliphatic portion of the nucleus; thus bromine gives phenacyl bromide, C6H6CO.CH2Br.

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  • Numerous derivatives of acetophenone have been prepared, one of the most important being orthoaminoacetophenone, NH2.C6H4.CO.CH3, which is obtained by boiling orthoaminophenylpropiolic acid with water.

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  • The a-halogen compounds are obtained by heating styrolene chloride (or bromide) with lime or alcoholic potash; they are liquids which have a penetrating odour, and yield acetophenone when heated with water to 180°.

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  • Related to styrolene is phenylacetylene, C G H 1 C;CH, which results when a-bromstyrolene or acetophenone chloride are heated to 130° with alcoholic potash, or phenylpropiolic acid with water to 120°.

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  • On solution in sulphuric acid, followed by dilution with water, it yields acetophenone.

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  • Acetophenone >>

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  • He also found that diaceto succinic ester reacts with compounds of the type NH 2 R(R = H, CH 3, OH, NHC 6 H 5, &c.) to form pyrrol derivatives CH3 CO CH CO 2 R, C(CH3) :C C02R A NH 2 R -?- - RN(CH 3 CO CH CO 2 R C(CH3) :C C02R By using compounds of the type NH 2 R and acetophenone acetoacetic ester C 6 H 5 CO CH 2.

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  • ACETOPHENONE, or PHENYL-METHYL KETONE, C8H8O or C6H5CO.CH3, in chemistry, the simplest representative of the class of mixed aliphatic-aromatic ketones.

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  • When heated with the halogens, acetophenone is substituted in the aliphatic portion of the nucleus; thus bromine gives phenacyl bromide, C6H6CO.CH2Br.

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  • Numerous derivatives of acetophenone have been prepared, one of the most important being orthoaminoacetophenone, NH2.C6H4.CO.CH3, which is obtained by boiling orthoaminophenylpropiolic acid with water.

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  • The a-halogen compounds are obtained by heating styrolene chloride (or bromide) with lime or alcoholic potash; they are liquids which have a penetrating odour, and yield acetophenone when heated with water to 180°.

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  • Related to styrolene is phenylacetylene, C G H 1 C;CH, which results when a-bromstyrolene or acetophenone chloride are heated to 130° with alcoholic potash, or phenylpropiolic acid with water to 120°.

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  • On solution in sulphuric acid, followed by dilution with water, it yields acetophenone.

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  • It crystallizes in needles which melt at 61 ° C. Flavoline (a-phenyl-y-methylquinoline) is formed on heating flavenol (see below) with excess of zinc dust, or by heating molecular proportions of ortho-aminoacetophenone and acetophenone, in dilute alcoholic solution, with a small quantity of Io% caustic soda solution (0.

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