Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Oleanes

Pleskov Y V 1994 Semioonduotor photoeleotroohemistry for a oleaner environment utilisation of solar energy Environmental Oriented Eleotroohemistry (Studies in Environmental Soienoe 59) ed C A C Sequeira (Amsterdam Elsevier)... [Pg.1953]

Fa]ula F and Plee D 1994 Applioation of moleoular sieves in view of oleaner teohnology. Gas and liquid phase separations Stud. Surf. Sc/. Catai. 85 633-51... [Pg.2793]

Dresser-Rand (Olean, New York) sales publieation, Power Reeovery Expanders, 1999. [Pg.84]

Miller, H.F., Blade Erosion—FCCU Power Recovery Expanders, D-R Turbo Products Division, Olean, N.Y, 1989. [Pg.111]

Chemical Name 3/3-hydroxy-11-oxo-20/3-olean-l2-en-29-oic acid hydrogen butanedioate Common Name Glycyrrhetinic acid hydrogen succinate Structural Formula ... [Pg.238]

Water waste water Extraction of sample with methylene chloride and olean-up on Florisil oolumn GC/ECD 0.49 [jg/L ( endo-sulfan) 6.1 pg/L ( "endosulfan) 2.7 pg/l (endosulfan sulfate) No data EPA 19860 (Method 8080)... [Pg.258]

Municipal and industrial discharge Extraction of sample with methylene ohloride water removal exchange to hexane volume reduotion olean-up on Florisil column and removal of elemental sulfur GC/ECD GC/MS 0.014 pg/L ( "endo-sulfan) 0.004 pg/L ( "endosulfan) 0.066 pg/L (endosulfan sulfate) 97 ( "endosulfan) 93 ( "endosulfan) 89 (endosulfan sulfate) EPA 1991b (Method 608)... [Pg.258]

The plant is known to produce norbisabolane diterpenes, including phyllanthusols A and B, which are both cytotoxic (36). From the bark, pentacyclic triterpenoids, phyl-lanthol, and olean-12en-3[3-ol (p-amyrin) have been isolated (37). Note lupane- and oleanane-type triterpenoids isolated from the bark of Phyllanthus flexuosus, such as olean-12-en-3 (3,15 a-diol, olean-12-en-3 [3,15 a,24-triol, lupeol, and betulin inhibited the enzymatic activity of topoisomerase II activity with IC50 values in the range of 10 to 39 p.M (38). [Pg.196]

Dammar is produced by trees belonging to the Dipterocarpaceae family. It is mainly composed of triterpenoids, but it also contains a polymeric fraction based on polycadinene, a polysesquiterpene [37,38]. The main components of the triterpene fraction are compounds with a dammarane type skeleton and oleane/ursane type molecules [39,40]. [Pg.337]

Figure 12.3 GC/MS (a) and THM GC/MS (b) curves of aged dammar. Peak assignments 2, a cubebene 3, copaene 4, ft bourbonene 8,10 12, cadinane type pyrolysis fragments 14 16, cadinene type pyrolysis fragments 17, calamanene type pyrolysis fragments 18 21, unidentified sesquiterpenoids 22, dammaradienone 23, dammaradienol 24, nor a amyrone 25, 28 nor olean 17 en 3 one 26, dammarenolic acid methyl ester 27, oleanonic acid 28, hydroxydammarenone 29, oleanonic aldehyde 30, ursonic acid methyl ester 31, ursonic aldehyde 32, nor (3 amyrone 34, 20,24 epoxy 25 hydroxy 3,4 seco 4(28) dammaren 3 oic acid methyl ester 35, 20,24 epoxy 25 hydroxy dammaren 3 one 36, dammaradienol... Figure 12.3 GC/MS (a) and THM GC/MS (b) curves of aged dammar. Peak assignments 2, a cubebene 3, copaene 4, ft bourbonene 8,10 12, cadinane type pyrolysis fragments 14 16, cadinene type pyrolysis fragments 17, calamanene type pyrolysis fragments 18 21, unidentified sesquiterpenoids 22, dammaradienone 23, dammaradienol 24, nor a amyrone 25, 28 nor olean 17 en 3 one 26, dammarenolic acid methyl ester 27, oleanonic acid 28, hydroxydammarenone 29, oleanonic aldehyde 30, ursonic acid methyl ester 31, ursonic aldehyde 32, nor (3 amyrone 34, 20,24 epoxy 25 hydroxy 3,4 seco 4(28) dammaren 3 oic acid methyl ester 35, 20,24 epoxy 25 hydroxy dammaren 3 one 36, dammaradienol...
Figure 12.4 THM GC/MS curve of mastic resin. Peak assignments 1, nor f3 amyrone 2, (8R) 3 oxo hydroxypolipoda 13E,17E,21 triene 3, nor 28 olean 18 en 3 one 4, moronic acid methyl ester 5, oleanonic acid methyl ester 6, oleanonic aldehyde 7,8, (iso)masticadienonic acid methyl ester... Figure 12.4 THM GC/MS curve of mastic resin. Peak assignments 1, nor f3 amyrone 2, (8R) 3 oxo hydroxypolipoda 13E,17E,21 triene 3, nor 28 olean 18 en 3 one 4, moronic acid methyl ester 5, oleanonic acid methyl ester 6, oleanonic aldehyde 7,8, (iso)masticadienonic acid methyl ester...
It is well known that the solubility of a compound in SCCO2 may be increased by adding modiflers (Sect. 2.3). One would expect an increased solubility of complexes in SCCO2 in the presence of an olefln/aldehyde, in which these complexes are well soluble at atmospheric pressure. Surprisingly, the example of trans-Co2 CO) [V n-Bu3])2 (2b) shows that the solubility is lower in the presence of oleflns compared to that solubility in pure CO2. For concentration ranges typical of a catalyzed reaction, the solubility of a metal complex drops with increasing chain length of an added of-oleAn (Fig. 17)... [Pg.126]

By using betulin as substrate, some mechanistic studies were performed and it was demonstrated that these reactions are catalyzed by Brpnsted acid species generated in situ from the hydrolysis of Bi(0Tf)3-.vH20. This process was also applied to other terpenic compounds. The sesquiterpene ( )-caryophyllene oxide originated clov-2-en-9a-ol by a cariophyllene-clovane rearrangement (Scheme 41) whereas 3-oxo- l 8a-olean-28- l 3(3-olide was obtained from oleanonic acid (Scheme 42). With this triterpene derivative, only 28,13(3-lactonization occurred, with inversion of the configuration of the stereocenter at C18 [133],... [Pg.170]

High-level expression of three macrolide glycosyltransferases created a S3m-thetic tool kit with such plasticity that 12 modified macrolide antibiotics (olean-dromycin and erythromycin) have been readily created [101]. [Pg.142]

Magnolio- phyta (Ang.)> 250,000/50 Goom. 1992 Land ALKAL. benzyl phenylethyl, benzyltetraisoquinoline, indolizinoquinoline, phenethylamine, phenethylisoquinoline, terpenoid (secoloeanin). ISOPR. Monotem. iridoids Tritem. oleane hi high... [Pg.83]

Yang, Y, Deng, Z, Proksch, P, Lin, W. Two new en-oleane derivatives from marine mangrove plant, Barringtonia racemosa. Pharmazie, (2006)., 18. [Pg.208]

Biodiesel is a olean burning alternative fuel produced from domestic, renewable resources. Biodiesel contains no petroleum, but it can be blended at any level with petroleum diesel to oreate a biodiesel blend. It can be used in compression-ignition (diesel) engines with little or no modifications. Biodiesel is simple to use, biodegradable, non-toxic, and essentially free of sulfur and aromatics. [Pg.22]

In 1944 a fluid catalyst pilot plant was erected and operated at the Olean laboratory. A schematic flow diagram of the unit is shown in Figure 1. The unit operated well from the beginning. The conversion of jeactants exceeded that achieved by the Germans even at space velocities 10 to 20 times those used in Europe. Also, iron catalysts were developed which gave oil yields comparable with those obtained by fixed-bed operations. Typical results from these early experiments are shown in Table I. A discussion of the conditions for the different runs is given in subsequent paragraphs. [Pg.127]

The inhibitory effect of olean-12-ene-3p,23,28-triol tri-O-hemiphthalate sodium (158), ursolic acid (210), and betulinic acid (257) on lung tumors have been reported [43]. Lantadene B (134), on oral administration, has an inhibitory effect on mouse hepatic tumors induced by A-nitrosodiethylamine and phenobarbital [45],... [Pg.66]

Olean-12-ene-2a,3 3,23-triol 159 Commiphora merkeri (Burseraceae) roots CAR [149]... [Pg.75]

See other pages where Oleanes is mentioned: [Pg.454]    [Pg.241]    [Pg.687]    [Pg.819]    [Pg.258]    [Pg.144]    [Pg.67]    [Pg.78]    [Pg.16]    [Pg.80]    [Pg.330]    [Pg.259]    [Pg.76]    [Pg.498]    [Pg.62]    [Pg.48]    [Pg.172]    [Pg.80]    [Pg.40]    [Pg.57]    [Pg.124]    [Pg.124]    [Pg.125]    [Pg.40]    [Pg.58]    [Pg.60]    [Pg.64]    [Pg.75]    [Pg.89]    [Pg.90]   
See also in sourсe #XX -- [ Pg.250 , Pg.251 , Pg.252 , Pg.253 , Pg.254 ]



SEARCH



Olean

Olean-12-ene

Oleane triterpene

Oleanic acid

Typical Biotransformations in the Oleane Family

© 2024 chempedia.info