Brom

Thymol has since been synthetised by a number of chemists, but only two of those syntheses need be considered in this connection because of their close relationship to the present method, Dinesmann (D.E.P., 125,097 (1900)) obtain a patent for a process of making thymol from 2-brom-p-cymene. This process consists in sulphonating 2-brom-p-cymene, obtaining 2-brom-3- or 5-sulphonic acid, which, when heated with zinc dust and ammonia in an autoclave at 170°, gives cymene-3-sulphonic acid. This compound on fusion with potassium hydroxide gives thymol. [Pg.253]

HO H / ch3ich2)s ch3 (S)-2- Brom o o ctane Ethyl (fl)-l-methylheptyl ether... [Pg.619]

Bei Reduktionen mit Lithiumalanat muB ein Hydrid-UberschuB vermieden werden, da sich dehalogenierte Produkte bilden konnen. So erhalt man z.B. aus brom-phenyl)-dthanoV, mit einem OberschuB 85% d.Th. 1 -(4-Brom-phenyl)-athanols ... [Pg.308]

Brom-propanoyl)-indol — 3-[l-Hydroxy-propyl-(2)-indol 67% d.Th. F. 187—188°... [Pg.309]

Brom - 2- nitro-3-methoxy-pro- — 2-Nitro-3-methoxy-propan- 70% d.Th. [Pg.394]

In Acetonitril/Tetraathylammoniumperchlorat wird die CAryJ-Br-Bindung an Quecksil-ber hydrogenolysiert so erhalt man Benzol (100% d.Th.) aus Brombenzol bzw. Pyridin (60% d.Th.) aus 2-Brom-pyridin2. [Pg.623]

In Essigsaure/Natriumacetat wird l,l,l-Trifluor-2-chlor-2-brom-athan (Halothan) bzw. l,2,2-Trifluor-l,l,2-trichIor-athan an Quecksilber zu 2,2-Difluor-l-chlor-iithen (80% d.Th,) bzw. 7,2,2-Trifluor-l-chlor-athen (85% d.Th.) reduziert3. [Pg.626]

Die Reduktion von 2-Brom-l-jod-bicyclo[2.2.1]heptan fiihrt zuBicyclo[2.2.1]hepten-(I), das als Diels-Al-der-Addukt mit Furan isoliert wird5. [Pg.627]

Die Elektrokatalyse mittels (5,5,7,7,12,12-HexamethyI-l,4,8,l l-tetraaza-cyclotetra-decan)-nickel(II) am Platin erlaubt die reduktive Kupplung von 2-Brom-butan mit Ole-finen ... [Pg.647]

Brom-l-allyloxy- 401 2-Brom-l-[cyclopenten-(3)-yl]- 401 2-Brom-l-oxo-l-(4-brom-phenyl)- 308, 503, 510 2-Brom-l-oxo-l,2-diphenyI- 569 2-Brom-l-oxo-l-phenyl- 396, 492, 503, 533, 621 2-Brom-l-phcnyl- 389, 520... [Pg.885]

Acetoxymethyl-N-phenyl- 662 2-Brom-4,5-dimethoxy-N-methy]-N-[6,7-di-methoxy-naphthyl-(l)]- 675... [Pg.891]

Brom-3-oxo-2-methyl- -athylester 564 -N-chlor-tert.-butylamid 699... [Pg.897]

Amino-6-(4-methyl-benzoylamino)- 681 6-Amino- -nitril 579 2-Brom- -athylester 396 2-Chlor- -isopropylester 548 2-Chlor-2-methyl- -isopropylester 548 2,2-Dicblor- -isopropylester 548... [Pg.905]

Brom- -chlorid 187 3-Brom- -methylester 210 2-Brom-2-nitro-3-methoxy- -methylester 394... [Pg.919]

Brom-397, 400, 402, 510, 512, 520 3-(2-Brom-athoxy)- 401 3-Brom-l-phcnyl- 580 3-Chlor- 512, 672 3-ChIor-2-benzyl- 401 3-Chlor-2-methyl- 401 3-ChIor-2-methyl-l -phenyl- 401... [Pg.920]

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