Big Chemical Encyclopedia

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

Articles Figures Tables About

Inden

The vitamin D3 metabolite la,25-dihydroxycholecalciferol is a lifesaving drug in treatment of defective bone formation due to renal failure. Retrosynthetic analysis (E.G. Baggjolint, 1982) revealed the obvious precursors shown below, a (2-cyclohexylideneethyl)diphenylphosphine oxide (A) and an octahydro-4f/-inden-4-one (B), to be connected in a Wittig-Homer reaction (cf. section 1.5). [Pg.281]

Indene derivatives 264a and 264b are formed by the intramolecular reaction of 3-methyl-3-phenyl-l-butene (263a) and 3,3,3-triphenylpropylene (263b) [237]. Two phenyl groups are introduced into the /3-substituted -methylstyrene 265 to form the /3-substituted /3-diphenylmethylstyrene 267 via 266 in one step[238]. Allyl acetate reacts with benzene to give 3-phenylcinnamaldehyde (269) by acyl—O bond fission. The primary product 268 was obtained in a trace amount[239]. [Pg.56]

When side chains of two or more different kinds are attached to a cyclic component, only the senior side chain is named by the conjunctive method. The remaining side chains are named as prefixes. Likewise, when there is a choice of cyclic component, the senior is chosen. Benzene derivatives may be named by the conjunctive method only when two or more identical side chains are present. Trivial names for oxo carboxylic acids may be used for the acyclic component. If the cyclic and acyclic components are joined by a double bond, the locants of this bond are placed as superscripts to a Greek capital delta that is inserted between the two names. The locant for the cyclic component precedes that for the acyclic component, e.g., indene-A - -acetic acid. [Pg.22]

Analgesics. Four examples of antiinflammatory agents are Sulindac [38194-50-2] based on a monofluoro indene derivative diflunisal... [Pg.269]

Few appHcations for fluoronaphthalenes and related polycycHc stmctures have materialized. The fused-ring bicycHc, suHndac [38194-50-2] a monofluorinated indene-3-acetic acid, is used as an antiinflammatory agent. [Pg.328]

Fluoronaphthalene [323-09-1] is prepared in 54—67% yield from 2-naphthylamine by the Balz-Schiemann reaction or in 51% yield by pyrolysis of indene and chlorofluoromethane at 600°C (77). [Pg.328]

The first resins to be produced on a commercial scale were the coumarone—indene or coal-tar resins (1) production in the United States was started before 1920. These resins were dominant until the development of petroleum resins, which were estabHshed as important raw materials by the mid-1940s. Continued development of petroleum-based resins has led to a wide variety of aHphatic, cyclodiene, and aromatic hydrocarbon-based resins. The principal components of petroleum resins are based on piperylenes, dicyclopentadiene (DCPD), styrene, indene, and their respective alkylated derivatives. [Pg.350]

Coumarone—indene or coal-tar resins, as the name denotes, are by-products of the coal carbonization process (coking). Although named after two particular components of these resins, coumarone (1) and indene (2), these resins are actually produced by the cationic polymerization of predominantly aromatic feedstreams. These feedstreams are typically composed of compounds such as indene, styrene, and their alkylated analogues. In actuaUty, there is very tittle coumarone in this type of feedstock. The fractions used for resin synthesis typically boil in the range of 150—250°C and are characterized by gas chromatography. [Pg.351]

G-9 Aromatic Petroleum Resins. Feedstocks typically used for aromatic petroleum resin synthesis boil in the approximate range of 100—300°C at atmospheric pressure, with most boiling in the 130—200°C range. The C-9 designation actually includes styrene (C-8) through C-10 hydrocarbons (eg, methylindene). Many of the polymerizable monomers identified in Table 1 for coumarone—indene type cmdes from coal tar are also present in aromatic fractions from cracked petroleum distillates. Therefore, the technology developed for the polymerization of coal-tar cmdes is also appHcable to petroleum-derived aromatic feedstocks. In addition to availabiHty, aromatic petroleum resins offer several advantages over coumarone—indene resins. These include improved color and odor, as weU as uv and thermal stabiHty (46). [Pg.354]

In order to increase the solubiUty parameter of CPD-based resins, vinyl aromatic compounds, as well as other polar monomers, have been copolymerized with CPD. Indene and styrene are two common aromatic streams used to modify cyclodiene-based resins. They may be used as pure monomers or contained in aromatic steam cracked petroleum fractions. Addition of indene at the expense of DCPD in a thermal polymerization has been found to lower the yield and softening point of the resin (55). CompatibiUty of a resin with ethylene—vinyl acetate (EVA) copolymers, which are used in hot melt adhesive appHcations, may be improved by the copolymerization of aromatic monomers with CPD. As with other thermally polymerized CPD-based resins, aromatic modified thermal resins may be hydrogenated. [Pg.355]


See other pages where Inden is mentioned: [Pg.114]    [Pg.123]    [Pg.208]    [Pg.215]    [Pg.215]    [Pg.215]    [Pg.51]    [Pg.522]    [Pg.206]    [Pg.447]    [Pg.7]    [Pg.9]    [Pg.290]    [Pg.424]    [Pg.429]    [Pg.430]    [Pg.432]    [Pg.432]    [Pg.434]    [Pg.434]    [Pg.561]    [Pg.598]    [Pg.974]    [Pg.1203]    [Pg.1]    [Pg.257]    [Pg.315]    [Pg.510]    [Pg.510]    [Pg.696]    [Pg.234]    [Pg.91]    [Pg.351]    [Pg.351]    [Pg.351]    [Pg.351]   
See also in sourсe #XX -- [ Pg.398 ]

See also in sourсe #XX -- [ Pg.52 ]




SEARCH



1H-Indene

2-Methyl-benz indene

2.3- Diphenyl-1 - -1 //-indene

3- indene, reaction with zirconium

3-Methyl-3/7-indene, asymmetric

Acid-catalyzed hydrolyses indene oxides

Aromatic hydrocarbons indenes

Benz inden-3-ylmethyl

Carbenes, reaction with indenes

Carboxylic acid, indene

Chiral indenes

Coumarone-indene

Coumarone-indene plastic

Coumarone-indene polymers

Coumarone-indene resins

Coumarone-indene tackifiers

Cumarone-indene resins

Cyclobuta indenes

Cyclopent indene

Cyclopropanes indenes

Dibenzo indene

Dihydro indenes

Dihydro-1 H-indenes

Epoxidation indene

Hydrogen peroxide, and formic acid with indene

Hydroxylation of indene

INDENE.107(Vol

INDENES, NAPHTHALENES, AND OTHER POLYCYCLIC AROMATIC COMPOUNDS

Indan and indene

Indanols indenes

Indanones indenes

Indanones indenes, 1-alkyl

Indazoles Indenes

Inden indole

Inden model

Inden-l-one

Indene

Indene

Indene 278 INDEX

Indene 3-ethyl

Indene Resins

Indene Subject

Indene Vilsmeier-Haack reaction

Indene and thiophenol

Indene anions

Indene as a Carbocyclic Paradigm

Indene derivatives, formation

Indene dibromide

Indene epoxide

Indene in ammonia

Indene moiety

Indene number

Indene of hydrogen deficiency

Indene oxides

Indene oxides acid-catalyzed hydrolysis

Indene ozonolysis

Indene phenylation

Indene photooxidation

Indene physical properties

Indene polymers

Indene products

Indene ring system

Indene synthesis

Indene, 1-dimethylaminosynthesis Vilsmeier-Haack reaction

Indene, 2-methylhydrozirconation Henry reaction

Indene, 2-methylhydrozirconation diastereoselectivity

Indene, 2-vinylsynthesis via photoisomerization

Indene, 2-vinylsynthesis via retro Diels-Alder reactions

Indene, 3-chloro-l-dimethylaminosynthesis

Indene, 3-chloro-l-dimethylaminosynthesis Vilsmeier-Haack reaction

Indene, acidity

Indene, asymmetric epoxidation with

Indene, benzyl

Indene, chlorination

Indene, complexes with metals

Indene, cyclopropane adduct

Indene, functionalized

Indene, hydroxylation

Indene, metallation

Indene, photodimerization

Indene, structure

Indene, tributylstannyl

Indene, trimethylsilyl

Indene-co-coumarone

Indene-isoindene rearrangement

Indene-type aldehyde

Indenes 1- alkylation

Indenes 1-alkyl— from

Indenes 2,4-substituted

Indenes 2-aryl

Indenes 4,7-dimethylindene

Indenes complexes

Indenes cycloaddition

Indenes electrophilic addition

Indenes special

Indenes, formation

Indenes, from cyclopropenes

Indenes, rearrangement

Indeno indene

Isoquinolines from indenes

L- indene

Living indene

Metallation of Indene

Methyl 2,3-dihydro-1 -indene-1 carboxylate

Methyl indene

Naphthalene-indene

Naphthalenes, from indenes

Phenyl-77-indene

Rearrangement, of: (cont indenes

Styrenes indenes

T> 2,2-Diazido-1 //-indene-1,3 -dione,

Thiophen Analogues of Indene

Thiophen Analogues of Indene and Fluorene

© 2024 chempedia.info