10 BÜCHER, DIE MIT «KETAL» IM ZUSAMMENHANG STEHEN
Entdecke den Gebrauch von
ketal in der folgenden bibliographischen Auswahl. Bücher, die mit
ketal im Zusammenhang stehen und kurze Auszüge derselben, um seinen Gebrauch in der Literatur kontextbezogen darzustellen.
1
Essentials of Organic Chemistry: For Students of Pharmacy, ...
This makes acetal or ketal formation a valuable means of protecting an aldehyde or ketone carbonyl from reaction with other reagents being used during a synthetic procedure. For instance, protection of a ketone group may be achieved by ...
2
Organic Chemistry: An Acid—Base Approach - Sayfa 866
Close examination of an acetal or ketal shows that the C=O unit is converted to a C(OR)2 unit. Another way to think about this is to recognize that an acetal or ketal does not undergo acyl addition and indeed is the product of acyl addition.
3
Novel Surfactants: Preparation Applications And ... - Sayfa 333
Hydrolysis of these compounds yields 1 mol of acetaldehyde and 2 mol of alcohol [which might be fatty alcohol alkoxylate, polyfalkylene glycol) or isobutanol]. C. Ketals Surfactants containing ketal bonds can be prepared from a long-chain ...
4
Anabolic Steroids and Making Them - Sayfa 24
15 20 Hydrolysis of the ketal with dil. hydrochloric acid gave ctiocholan-ll/3,17;9-diol-3-one, M.P. 171-173°. EXAMPLE 7. A mixture of 10.0 g. of prcgnan-ll/3,17a-diol-3,20- 5 dione, 10.0 g. of selenium dioxide, 150 ml. of ethylene glycol and 100 ...
5
Cracking the MCAT with CD-ROM - Sayfa 856
Dissolving an aldehyde or ketone in alcohol (with an acid catalyst) converts it first to a hemiacetal or hemiketal, which, on further reaction with alcohol, converts it to an acetal or ketal. The acetal and ketal moieties are unreactive in basic media ...
James L. Flowers, Princeton Review, Theodore Silver,
2004
6
Greene's Protective Groups in Organic Synthesis
ketal) under acidic cleavage conditions. Benzoates rather than acetates were used during the synthesis of the C.38– C.51 segment, since they were more stable and better chromophores in purification and characterization. Several additional ...
7
Palladium catalyzed cycloisomerizations with diasteromeric ... - Sayfa 9
The unreactivness of the modified trialklylsilyl ketals towards cyclization then lead us to propose increasing the steric bulk of the ketal groups. This can be done by alkyl subsitution on the phenyl ring to provide the o-tolyl ketal 17, and the ...
Timothy David Pfaltzgraff, Stanford University. Dept. of Chemistry,
1996
8
Reactions And Synthesis In Surfactant Systems - Sayfa 53
C. Ketals Surfactants containing ketal bonds can be prepared from a long-chain ketone and a diol in analogy with the reaction schemes given in Figs. 10 and 11 for the preparation of acetal surfactants [45]. Ketal-based surfactants have also ...
9
Natural and Synthetic Biomedical Polymers - Sayfa 225
Ketal hydrolysis at different rates in mildly acidic conditions as a function of the polymer hydrophobicity could lead to optimal release of the bioactive (e.g., therapeutic protein or vaccine) [18,88]. The ability to tune acetal/ketal degradation rates ...
Sangamesh Kumbar, Cato Laurencin, Meng Deng,
2014
10
The Chemistry of Heterocyclic Compounds, Seven-Membered ...
Acetals such as acetaldehyde diethyl acetal and benzaldehyde dimethyl acetal, or ketals such as acetone dimethyl ketal, acetone butyl methyl ketal, acetone dibutyl ketal, 2-butanone dimethyl ketal, 3-pentanone dimethyl ketal, cyclohexanone ...
10 NACHRICHTEN, IN DENEN DER BEGRIFF «KETAL» VORKOMMT
Erfahre, worüber man in den einheimischen und internationalen Medien spricht und wie der Begriff
ketal im Kontext der folgenden Nachrichten gebraucht wird.
Modifying Sustainability Programs to Increase Revenue and …
Dr. Bernard, Vice President, Global Regulatory Affairs and Compliance at Dorf Ketal Chemicals, recently spoke with marcus evans about topics to be discussed ... «Yahoo Finance UK, Sep 15»
Ketal presentó la Primera Feria del Chocolate
Supermercados Ketal está siempre pendiente de las necesidades y el bienestar de sus clientes. Además de ofrecer los mejores servicios y una atención de ... «Diario Pagina Siete, Sep 15»
Dorf Ketal Adopts Oracle Sales Cloud to Boost Their Sales Pipeline
Dorf Ketal, a global chemical manufacturer, has adopted Oracle Sales Cloud to streamline and enhance its sales processes. Oracle Sales Cloud offers a ... «PR Newswire India, Sep 15»
Chemical firm Dorf Ketal implements Oracle Sales Cloud
Oracle Sales Cloud provides enterprise visibility to Dorf Ketal that lets them report across locations and divisions. It also enables them to measure salesforce ... «Firstpost, Sep 15»
Dorf Ketal: Oracle EBS com KPIT
A Dorf Ketal, multinacional do setor petroquímico, implementou o ERP Oracle EBS versão R12 em suas unidades ao redor do globo. A mais recente foi a da ... «Baguete, Aug 15»
KETAL premió a sus clientes con un 0 kilómetros
Como parte de sus actividades por el Día de la Madre, la cadena de Supermercados Ketal premió la confianza y fidelidad de todos sus clientes con el sorteo de ... «Diario Pagina Siete, Jul 15»
Ketal lleva gratis los pedidos a los domicilios de sus clientes
La cadena de supermercados Ketal, en la sucursal de Obrajes, ofrece el servicio de entrega gratuita a domicilio para aquellos clientes que hagan sus pedidos ... «Diario Pagina Siete, Mär 15»
Corrosion Inhibitor targets petroleum refiners.
In response, Dorf Ketal Chemicals LLC, a specialty chemical company serving the downstream refining and petrochemical industries, has introduced ... «ThomasNet News, Jan 15»
New chemistry for high TAN crude corrosion control - Dorf Ketal's …
In response, Dorf Ketal Chemicals LLC, a specialty chemical company serving the downstream refining and petrochemical industries, has introduced ... «PR Newswire, Jan 15»
Tyzor® Activate PET Catalyst Increases PET Profitability Across The …
16, 2014 /PRNewswire/ -- Dorf Ketal Speciality Catalysts, LLC - Tyzor® ACtivate™ PET catalyst improves the resin producer's position in the value chain by ... «PR Newswire, Dez 14»