نتایج جستجو برای: acetal chemistry
تعداد نتایج: 109309 فیلتر نتایج به سال:
The caprylic, lauric, palmitic and stearic esters of solketal and glycerol formal were synthesized with high selectivity and in good yields by a solvent-free acid catalyzed procedure. No acetal hydrolysis was observed, notwithstanding the acidic reaction conditions.
The syntheses of butane-2,3-diacetal protected tartrate derivatives are described using continuous flow processing techniques with in-line purification and I.R. analytical protocols.
A new direct conversion of O,O-acetals to esters via O,P-acetal intermediates was developed. The regioselective cleavage of unsymmetrical cyclic acetals occurred to give the more crowded esters as single isomers.
A.D. [?]. Abrasive [?]. Abrasives [?]. Abroad [?]. Absolute [?]. Abundant [?]. Accelerators [?]. Accident [?]. Accumulators [?]. Acetal [?]. Acetylene [?]. Achievements [?]. Acid [?]. Acids [?]. Across [?]. Acrylic [?]. Acting [?]. Action [?]. Actual [?]. Actuator [?]. Addicts [?]. Adhesive [?, ?]. Adhesives [?]. Advances [?, ?]. Advertising [?]. Advice [?]. AEC [?]. Aerial [?]. Affirmation [?]...
Titanocene and zirconocene ketene acetal derivatives have been prepared by reaction of the respective metallocene dichloride with the lithium enolate of isobutyric acid methyl ester. The crystal structure of (CsH s),Ti(CDOC(OCH 3):C(CH 3) is reported.
-In this research paper, we have explored the algorithms/techniques that help in the detection of types of defects (Flash, Warping, Bubbles, Unfilled sections, Sink marks and Ejector marks) that may occur during the manufacturing process of plastic gears. Due to the inherent properties (moisture, absorption, temperature, pressure etc.) of the material (acetal resins such as DELRIN, Duracon M90;...
A method for the assembly of tricyclic structures containing the peroxide, monoperoxyacetal, and acetal moieties was developed based on the acid-catalyzed reaction of β,δ-triketones with H(2)O(2). Tricyclic compounds are formed selectively in yields from 39% to 90% by the reactions with the use of large amounts of strong acids, such as H(2)SO(4), HClO(4), or HBF(4), which act both as the cataly...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید