نتایج جستجو برای: acetal chemistry

تعداد نتایج: 109309  

Journal: :Molecules 2016
Alvise Perosa Andrea Moraschini Maurizio Selva Marco Noè

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.

Journal: :Organic & biomolecular chemistry 2009
Catherine F Carter Ian R Baxendale Matthew O'Brien John B J Pavey Steven V Ley

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.

Journal: :Organic & biomolecular chemistry 2011
Tomohiro Maegawa Kazuki Otake Akihiro Goto Hiromichi Fujioka

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.

2013
Nelson H. F. Beebe

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 [?]...

2001
Kai Hartmann Josef Diebold Hans-Herbert Brintzinger

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.

2014
Preeti Saini Rohit Anand

-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;...

Journal: :The Journal of organic chemistry 2012
Alexander O Terent'ev Ivan A Yaremenko Vladimir V Chernyshev Valery M Dembitsky Gennady I Nikishin

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...

Journal: :Chemical and Pharmaceutical Bulletin 1982

Journal: :The Journal of Antibiotics 1990

Journal: :Journal of Biological Chemistry 1951

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