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            ‐Divinyl‐benzol und Naphthalin

Fries, K.; Bestian, H.

doi:10.1002/cber.19360690416

Cited by 21 publications

(3 citation statements)

References 8 publications

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“…Calc'd for CIIH18ClN Anal. This method supplements previous preparations (15,16) and may be more convenient. Found: N, 6.93. o-Divinylbenzene was produced in 90% yield by the dehydration of o-bis (p-hydroxy-ethy1)benzene on potassium hydroxide.…”

Section: N-ethyl-zd~5-tetrahydro-3lh-benzazepinementioning

confidence: 60%

“…Found: N, 6.93. o-Divinylbenzene was produced in 90% yield by the dehydration of o-bis (/3-hydroxyethyl)benzene on potassium hydroxide. This method supplements previous preparations (15,16) and may be more convenient. Molten o-bisOS-hydroxyethyl)benzene, 8.4 g., was added in 20 minutes to 10 g. of potassium hydroxide in a distilling-flask evacuated to 60 mm.…”

Section: IImentioning

confidence: 60%

See 1 more Smart Citation

o-Phenylenediacetimide and other Compounds Related to 3, 1H-Benzazepine

Halford¹,

Weissmann²

1952

J. Org. Chem.

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o-Phenylenediacetamide has been cyclized pyrolytically to o-phenylenediacetimide. The yield at 295" was 57% on a 190-mg. scale and 53% on a 2-g. scale, while less satisfactory yields were obtained at higher or lower temperatures. About 10% of the diamide was recovered. Attempts to improve the yield by conducting the reaction under dilution in boiling phenyl ether (ammonia evolution 87%, imide recovered 12%) and in boiling phenol (ammonia evolution slow) were not successful.This apparent contradiction of the dilution principle has a fairly satisfactory explanation. If it is assumed that only amide linkages are formed and that the system is approaching equilibrium, there should be in a single phase a distribution of cyclic polymers whose mean molecular weight would decrease with increasing temperature or with dilution. The distribution, because of these two factors, should be about the same in the pyrolysis (higher temperature) and in the phenyl ether experiment (dilution). The pyrolytic reaction produces the better result because the product, along with a smaller quantity of the diamide, sublimes out of the sphere of reaction. It is possible, but less probable, that the

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Section: N-ethyl-zd~5-tetrahydro-3lh-benzazepinementioning

confidence: 60%

Section: IImentioning

confidence: 60%

o-Phenylenediacetimide and other Compounds Related to 3, 1H-Benzazepine

Halford¹,

Weissmann²

1952

J. Org. Chem.

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“…In the preparation of o-dimethylaminomethylstyrene from the quaternary iodide, some N-methyltetrahydroisoquinoline also was isolated (53). The identity of the bisß-(o-phenylene) ethylamine used as the starting material for the preparation of o-dimethylaminoethylstyrene (21) has been questioned (61). When the methiodide from this o-dimethylaminoethylstyrene was treated with silver oxide and then heated, trimethylamine and a tar were the only products obtained.…”

Section: Archclchs Pyridine Arch-ch2mentioning

confidence: 99%