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Phenylacetylene is a prototypical terminal acetylene, undergoing many reactions expected of that functional group. It undergoes semi hydrogenation over Lindlar catalyst to give styrene . In the presence of base and copper(II) salts, it undergoes oxidative coupling to give diphenylbutadiyne . [ 6 ]
Serum sickness in humans is a reaction to proteins in antiserum derived from a non-human animal source, occurring 5–10 days after exposure. Symptoms often include a rash, joint pain, fever, and lymphadenopathy. It is a type of hypersensitivity, specifically immune complex hypersensitivity .
Food protein-induced enterocolitis syndrome (FPIES) is a systemic, non IgE-mediated food allergy to a specific trigger within food, most likely food protein.As opposed to the more common IgE food allergy, which presents within seconds with rash, hives, difficulty breathing or anaphylaxis, FPIES presents with a delayed reaction where vomiting is the primary symptom.
1-10 minutes, or up to 18 hours Visual disturbance, eye pain, pinpointing of the pupils, runny nose, chest tightness, breathing difficulty, cough, severe nasal congestion, nausea, diarrhea, vomiting, and twitching, VX Gas: colorless Odor: none 1-10 minutes, or up to 42 hours Constricted pupils, visual disturbance, eye pain, runny nose,
The risk of first-degree relatives developing the same hypersensitivity reaction is higher than in the general population. [ 1 ] As this syndrome can present secondary to multiple anticonvulsants, the general term "anticonvulsant hypersensitivity syndrome" (AHS) is favored over the original descriptive term "dilantin hypersensitivity syndrome."
Yet another method involves the coupling of iodobenzene and the copper salt of phenylacetylene in the Castro-Stephens coupling. The related Sonogashira coupling involves the coupling of iodobenzene and phenylacetylene. Diphenylacetylene is a planar molecule. The central C≡C distance is 119.8 picometers. [1]
A New Jersey family is suing DraftKings after a father of two gambled away more than $1 million of his family’s money across four years. The man, known by his username Mdallo1990, allegedly lost ...
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