Mild alkaline hydrolysis of hindered esters in non-aqueous solution
نویسندگان
چکیده
منابع مشابه
Breakdown of Phospholipids in Mild Alkaline Hydrolysis.
M i l d alkaline hydrolysis of phospholipids, a method introduced by Dawson ( l ) , is based on the following principle. The carboxyl ester groups of a phospholipid are much more susceptible to nucleophilic attack by hydroxy or alcoholate ions than the phosphate group. Thus, by choosing appropriate concentrations of base, phospholipids can be deacylated (Le., the fatty acid esters can be prefer...
متن کاملTheoretical study on the alkaline hydrolysis of methyl thioacetate in aqueous solution.
A base-catalyzed hydrolysis reaction of thiolester has been studied in both gas and solution phases using two ab initio quantum mechanics calculations such as Gaussian09 and CPMD. The free-energy surface along the reaction path is also constructed using a configuration sampling technique, namely, the metadynamics method. While there are two different reaction paths obtained for the potential pr...
متن کاملSYNERGISTIC INFLUENCE OF NITRITE ON INHIBITION OF MILD STEEL CORROSION IN CHLORIDE CONTAMINATED ALKALINE SOLUTION
Corrosion behavior of mild steel in chloride contaminated alkaline solution has been studied for the period up to 100days. Saturated Calcium hydroxide solution was used as alkaline solution and 0.5M NaCl solution was used to accelerate mild steel corrosion. The Charge transfer resistance Rct, Current density Icorr and inhibition efficiency values were obtained from tafel polarization and electr...
متن کاملHydrolysis of Several Substituted Methyl Benzoates in the Aqueous Solution
-The hydrolysis of several ring substituted methyl benzoates was investigated in aqueous solution over a pH range of 3-10. Both the pH dependence (at pH > 5) and the variation of hydrolysis rates with ring substitution are consistent with a mechanism involving the addition of hydroxide ion to the ester carbonyl group. Extrapolation of the rate data to a pH and temperature that would be consiste...
متن کاملHydrolysis and photolysis of oxytetracycline in aqueous solution.
Oxytetracycline ((2Z,4S,4aR,5S,5aR,6S,12aS)-2-(amino-hydroxy-methylidene)-4-dimethylamino-5,6,10,11,12a-pentahydroxy-6-methyl-4,4a,5,5a-tetrahydrotetracene-1,3,12-trione) is a member of tetracycline antibiotics family and is widely administered to farm animals for the purpose of therapeutical treatment and health protection. Increasing attention has been paid to the environmental fate of oxytet...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Arkivoc
سال: 2018
ISSN: 1551-7012
DOI: 10.24820/ark.5550190.p010.673