HCID 20513675, compound → Anthracene

HRID 851352Notes

Reaction equation

HRID 851352 reaction equation
[CH2:1]1[C:14]2[CH:5]([CH2:6][CH:7]3[C:12]([CH:13]=2)=[CH:11][CH:10]=[CH:9][CH2:8]3)[CH2:4][CH2:3][CH2:2]1>[H][H]>[CH:4]1[C:5]2[C:14](=[CH:13][C:12]3[C:7]([CH:6]=2)=[CH:8][CH:9]=[CH:10][CH:11]=3)[CH:1]=[CH:2][CH:3]=1

Participants

3

Reactant 1

HCID 20513675HCID 20513675, compound

Product 1

HCID 8418AnthraceneYield 101%

Reagents, catalysts & solvents 1

HCID 178418361HCID 178418361, compoundSolvent

Conditions

Temperature
480 °C

Procedure

In the dehydrogenation apparatus described in Example 2 the preheating zone was heated to a temperature of 480° C. and the reaction and afterheat zone were heated to a temperature of 520° C. 400 ml molten sym.-octahydroanthracene (385 g) of Example 3 were added drop by drop per hour from a drip funnel heated to 95° C. At the same time about 4 liter hydrogen per hour were added as a carrier gas. 372 g of raw anthracene were obtained per hour, which contained as impurities 1.8 percent 9,10-dihydroanthracene, 2.5 percent 1,2,3,4-tetrahydroanthracene, 2.6 percent sym.-octahydroanthracene and 2.9 percent phenanthrene.

Workup

  1. customthe reaction and afterheat zone
  2. temperaturewere heated to a temperature of 520° C
  3. temperatureheated to 95° C

Sources & evidence

ORD record
ord-73191da8da364911b5091a54d673f31a
Source dataset
uspto-grants-1983_05
Patent number
US04384152

Reaction notes

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