Methyl indene

Dehydrocyclization of n-butylbenzene produces 1-methylindan, methyl-indenes, and naphthalene ... 

Other cyclopentadienes with reasonable C-H acidity, such as methyl indene-3-carboxylate (11) and l,5-dibenzoylcyclopenta-l,3-dienc (preferably existing in the 6-hydroxyfulvene form, 13), also successfully condensed with 2,3-dipropylcyclopropenone (10) when acetic anhydride was used as a dehydrating agent. ... 

S. Fabid u. S. E. Shealer, Chem. Commun. 1973, 296 dort entspreehende Addukte mit 1,1-Di-methyl-inden (Verhaltnis 5,8 1). 

M ethyl-butadicn-( 1,2)-1 - -dimethylester 1360 3- Methyl-inden-1 - -dimethylester 1360 3-Methyl-3-phenyl-cyclopropan- -di methylester 1360 Naphthalin-N- -dimethylestcr 1374 3-Oxo-2-methyl-butan-2- -isopropylester 1373 Thiophen-2- -dimethylcstcr 1374 Trichlormetlian- -mono-(2-melhyl-propylester) 1375 2,3.4-Trimethy)-penten-4- -methylester-amid 1362... 

Other compounds react similarly. Methyl indene (379), for example, reacted with dichlorocarbene to give 380. Subsequent rearrangement was accompanied by loss of HCl to give the naphthalene derivative 381.2 3 The course of the reaction is dictated by the inherent stability of the final product.204... 

Under appropriate conditions, mixtures of acetylene and styrene can form adducts such as methyl indene and 1,2-dihydronaphthalene, although polymers normally form under similar conditions. One of your researchers, Sue Dent, claims to have found a material which when added to the gaseous mixture inhibits both polymer formation and other side reactions. Her data indicate that at 525°C, the reactions of interest can be expressed as... 

Chlor.2.methyl-inden 5, 520. Cjgl ClHgNtO 5-(%lor-4-hydrozymercuri-... 

Ammo-2-methyl-inden 18,1210. N-Athyl-indol 20, 309, II200. 

The term PR refers to hydrocarbon resins obtained by the catalytic oligomerization of deeply cracked petroleum stocks. These petroleum stocks generally contain mixtures of resin formers such as styrene, methyl styrene, vinyl toluene, indene, methyl indene, butadiene, isoprene, piperylene, and pentylenes. The so-called polyalkylaromatic resins fall into this classification. 

Tackifying resins also come from petroleum feedstocks. These are broadly dassified as aromatic and aliphatic resins. The aromatic resins are based upon such materials as styrene, a-methyl styrene, methyl indene, indene, coumarone, and dicy-dopentadiene. Aromatic resins are sometimes called C-9 resins. The materials in various combinations are polymerized by much the same process as the pinenes. Some of the aliphatic resins are also called C-5 resins, as these are based upon pen-tene, cydopentene, ds- and tram-piperylene, isoprene, 2-methyl butene-2, and dicydopentadiene. An abbreviated list of conventional taddfying resins is shown in Table 1. 

Figure 1.2 (A) Filament pyrolysis - gas chromatogram of PVC (a) biphenyl, (b) methyl naphthalene, (c) naphthalene, (d) methylindene, (e) tetralin, (f) methyl indene, (g) indene, (h) indane, (i) styrene, (j) o-xylene, (k) ethylbenzene, (1) toluene, (m) benzene. (B) Filament pyrolysis - gas chromatography of polyvinylidene chloride, (a) tetra-chlorostyrene, (b) trichlorostyrene, (c) 1,3,5 trichlorobenzene, (d) w-dichlorobenzene, (e) trichlorobutadiene, (f) chlorobenzene, (g) vinyldene-chloride. [Source Author s own files)...

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