Search results
Results From The WOW.Com Content Network
Piperonal can be prepared by the oxidative cleavage of isosafrole or by using a multistep sequence from catechol or 1,2-methylenedioxybenzene. Synthesis from the latter chemical is accomplished through a condensation reaction with glyoxylic acid followed by cleaving the resulting α-hydroxy acid with an oxidizing agent .
1,3-Benzodioxole (1,2-methylenedioxybenzene) is an organic compound with the formula C 6 H 4 O 2 CH 2. The compound is classified as benzene derivative and a heterocyclic compound containing the methylenedioxy functional group .
3 + H 2 O 2 •CO(NH 2) 2 → CF 3 COOOH + CF 3 COOH + CO(NH 2) 2. In the case of neosporol, a Prilezhaev reaction [13] with trifluoroperacetic acid is used to convert a suitable allyl alcohol precursor to an epoxide, which then undergoes a ring-expansion reaction with a proximate carbonyl functional group to form the dioxolane ring. [10] [11]
1,3-Dioxane or m-dioxane is an organic compound with the molecular formula (CH 2) 4 O 2. It is a saturated six-membered heterocycle with two oxygen atoms in place of carbon atoms at the 1- and 3- positions. 1,4-Dioxane, which is of greater commercial value, is an isomer. Both dioxanes are colorless liquids. [1]
Synthesis methods for the 1,2-dioxolane core structure include oxidation of cyclopropane derivatives with singlet oxygen [3] or molecular oxygen with a suitable catalyst, [4] [5] the use of autooxidation, nucleophilic displacement with hydrogen peroxide, treatment with mercury(II) nitrate, photolysis of extended π-systems, [6] reaction of a bis-silylperoxide and an alkene, [7] or reaction ...
Malignant hyperthermia (MH) is a type of severe reaction that occurs in response to particular medications used during general anesthesia, among those who are susceptible. [1] Symptoms include muscle rigidity , fever , and a fast heart rate . [ 1 ]
The 3 substrates of this enzyme are cis-1,2-dihydroxy-4-methylcyclohexa-3,5-diene-1-carboxylate, NAD +, and NADP +, whereas its 4 products are 4-methylcatechol, NADH, NADPH, and CO 2. This enzyme belongs to the family of oxidoreductases , specifically those acting on the CH-CH group of donor with NAD+ or NADP+ as acceptor.
Indole-3-carbaldehyde (I3A), also known as indole-3-aldehyde and 3-formylindole, is a metabolite of dietary L-tryptophan which is synthesized by human gastrointestinal bacteria, particularly species of the Lactobacillus genus.