HCID 178445855, compound → Chromium

HRID 26014

Reaction equation

HRID 26014 reaction equation
[CH2:1]([Cr:6]([CH2:17][C:18]([CH3:21])([CH3:20])[CH3:19])([CH2:12][C:13]([CH3:16])([CH3:15])[CH3:14])[CH2:7][C:8]([CH3:11])([CH3:10])[CH3:9])[C:2]([CH3:5])([CH3:4])[CH3:3]>CCCCCCC>[CH2:17]([Cr:6]([CH2:1][C:2]([CH3:5])([CH3:4])[CH3:3])([CH2:7][C:8]([CH3:11])([CH3:10])[CH3:9])[CH2:12][C:13]([CH3:15])([CH3:14])[CH3:16])[C:18]([CH3:21])([CH3:20])[CH3:19].[Cr:6]

Participants

4

Reactant 1

HCID 178445855HCID 178445855, compound

Product 2

HCID 23976ChromiumYield 1%HCID 178445855HCID 178445855, compound

Reagents, catalysts & solvents 1

HCID 8900HeptaneSolvent

Procedure

Tetrakis(neopentyl)chromium is prepared essentially by a method disclosed in U.S. Pat. No. 3,875,132. The base catalyst is prepared by dispersing tetrakis(neopentyl)chromium in heptane solution onto Davison 952 MS-ID silica, predried at 1300° F. for 5 hours in a fluid bed, in such a ratio as to give 1% chromium by weight on the dry basis in the impregnated catalyst. The base catalyst thus prepared is activated, in one case, by the method of Example 8 and, in the other case, by the method of Example 9 which includes further treatment of the activated catalyst at 1200° F. for a period of 15 minutes with dry air.

Workup

  1. customThe base catalyst is prepared

Sources & evidence

ORD record
ord-a0ecdd7450514bd386b82756da37fc21
Source dataset
uspto-grants-1979_04
Patent number
US04147849

Linked notes

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