منابع مشابه
In vitro reaction of barbiturates with formaldehyde.
Barbiturates are widely used as sedatives, hypnotics, and antiepileptics, and, when coupled with their narrow therapeutic index, the probability that their use will result in accidental or intentional death is significant. When barbiturates are implicated in a murder or suicide, analysis for their presence is often required. Under certain conditions, barbiturates are quite stable, but condition...
متن کاملThe formaldehyde-hemoglobin reaction.
It is now generally accepted that formaldehyde reacts initially with amino groups of proteins to form methylolamines, which then react more slowly to form methylene bridges between the amino groups and such other groups as the amide group and the phenol& indole, and imidazole rings (Fraenkel-Conrat and Olcott (1) ; Alexander et al. (2)). Some of these bridges are intermolecular. The present pot...
متن کاملHydrogen Atom-formaldehyde Reaction
where H-H-C and H-D-C are weak bonds and make a negligible contribution, leads to a value of -2 kcal. Therefore, E5-E2=1 kcal compared with the experimental value of 1.0 kcal. The preexponential factor for this pair of isotopic reactions can be calculated from the difference in the entropies of activation. Using the same loose complex as above and applying the expression derived by Bigeleisens ...
متن کاملReaction of Formaldehyde with Phenols: A Computational Chemistry Study
Phenolic resins are important adhesives used by the forest products industry. The phenolic compounds in these resins are derived primarily from petrochemical sources. Alternate sources of phenolic compounds include tannins, lignins, biomass pyrolysis products, and coal gasification products. Because of variations in their chemical structures, the reactivities of these phenolic compounds with fo...
متن کاملOccupational asthma due to formaldehyde resin dust with and without reaction to formaldehyde gas.
We report the cases of three subjects who developed asthma after being exposed to formaldehyde dust or gas. For two subjects, specific bronchial provocation tests with formaldehyde gas did not cause significant bronchoconstriction, whereas exposure to formaldehyde resin dust did. One subject experienced asthmatic reaction after being exposed to formaldehyde resin dust and gas. These findings su...
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ژورنال
عنوان ژورنال: Journal of Synthetic Organic Chemistry, Japan
سال: 1970
ISSN: 0037-9980,1883-6526
DOI: 10.5059/yukigoseikyokaishi.28.243