diazo reaction

diazo reaction
diazo reaction n a reaction in which a diazo compound is made or used specif a reaction in various diseases (as typhoid fever) consisting of a red discoloration of the urine on addition of diazobenzenesulfonic acid

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Ehrlich diazo r.

Medical dictionary. 2011.

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  • diazo reaction — noun : a reaction in which a diazo compound is made or used; specifically : a reaction in various diseases (as typhoid fever) consisting of a red discoloration of the urine on addition of diazobenzenesulfonic acid …   Useful english dictionary

  • Ehrlich diazo reaction — a reaction of a pure pink or red color resulting from the action of diazotized sulfanilic acid and ammonia upon certain aromatic substances, e.g., urobilinogen, found in the urine in some conditions. This reaction has diagnostic value in hepatic… …   Medical dictionary

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  • reaction — 1. The response of a muscle or other living tissue or organism to a stimulus. 2. The color change effected in litmus and certain other organic pigments by contact with substances such as acids or alkalies; also the property that such substances… …   Medical dictionary

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  • egg yellow reaction — the appearance of a yellow foam in an Ehrlich diazo reaction before the addition of ammonia, thought to indicate acute pneumonia …   Medical dictionary

  • Barton-Kellogg reaction — The Barton Kellogg reaction is a coupling reaction between a ketone and a thioketone through a diazo intermediate forming an alkene.[1][2][3] …   Wikipedia

  • Doyle-Kirmse reaction — The Doyle Kirmse reaction is an organic reaction in which in the original scope an allyl sulfide reacts with trimethylsilyldiazomethane to form the homoallyl sulfide compound.[1] The reaction was first reported by W. Kirmse in 1968 [2] and… …   Wikipedia

  • Bamford-Stevens reaction — The Bamford Stevens reaction is a chemical reaction whereby treatment of tosylhydrazones with strong base gives alkenes.cite journal | author = Bamford, W. R.; Stevens, T. S. | journal = J. Chem. Soc. | date = 1952 | pages = 4735–4740 | title =… …   Wikipedia

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