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.

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.

An efficient synthetic route to prepare O -(2- -benzyl-3,4-di- -acetyl-?/?- l -fucopyranosyl)-trichloroacetimidate from -fucose was developed by introducing the thiophenyl group at anomeric center and benzylidene functional protect 3 4 positions. Although three approaches were considered, best result obtained when, after 2-hydroxyl benzylation, both protective groups simultaneously removed usin...

-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...

Bacterial biofilms are surface associated bacterial communities of sessile cells encased in a matrix of polysaccharides, extracellular DNA and proteins. Such biofilms are of significant concern in nosocomial infections, where it is attributed to over $1 billion in increased hospital costs per annum in the US alone. Unlike cells in the planktonic state, bacterial biofilms do not exert their anti...