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ketene

ketene

ketene Sentence Examples

  • Two classes may be distinguished: the aldo-ketenes, including ketene itself, together with its monoalkyl derivatives and carbon suboxide, and the keto-ketenes which comprise the dialkyl ketenes.

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  • The ketoketenes are coloured compounds, which undergo autoxidation readily, form ketene bases on the addition of pyridine and quinoline, and yield addition compounds with substances containing the C:N and C:0 groupings.

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  • Ketene, CH, :CO, was discovered by N.

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  • Dimethyli ketene, (CH3)2C :CO, obtained by the action of zinc on a-brom-isobutyryl bromide, is a yellowish coloured liquid.

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  • Diethyl ketene, (C2H5)2C :CO, is formed on heating diethylmalonic anhydride (Staudinger, ibid.).

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  • Diphenyl ketene, (C6H5)2C :CO, obtained by the action of zinc on diphenyl-chloracetyl chloride, is an orangered liquid which boils at 146° C. (12 mm.).

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  • Only the (Z) isomer was formed in analogy to the N, O ketene acetals.

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  • ketene acetals.

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  • Two classes may be distinguished: the aldo-ketenes, including ketene itself, together with its monoalkyl derivatives and carbon suboxide, and the keto-ketenes which comprise the dialkyl ketenes.

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  • The ketoketenes are coloured compounds, which undergo autoxidation readily, form ketene bases on the addition of pyridine and quinoline, and yield addition compounds with substances containing the C:N and C:0 groupings.

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  • Ketene, CH, :CO, was discovered by N.

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  • Dimethyli ketene, (CH3)2C :CO, obtained by the action of zinc on a-brom-isobutyryl bromide, is a yellowish coloured liquid.

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  • Diethyl ketene, (C2H5)2C :CO, is formed on heating diethylmalonic anhydride (Staudinger, ibid.).

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  • Diphenyl ketene, (C6H5)2C :CO, obtained by the action of zinc on diphenyl-chloracetyl chloride, is an orangered liquid which boils at 146° C. (12 mm.).

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