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13151-05-8

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13151-05-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13151-05-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,1,5 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 13151-05:
(7*1)+(6*3)+(5*1)+(4*5)+(3*1)+(2*0)+(1*5)=58
58 % 10 = 8
So 13151-05-8 is a valid CAS Registry Number.
InChI:InChI=1/C8H16/c1-4-6-8(3)7-5-2/h4,8H,1,5-7H2,2-3H3/t8-/m0/s1

13151-05-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-methylhept-1-ene

1.2 Other means of identification

Product number -
Other names 4-Methyl-hepten

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:13151-05-8 SDS

13151-05-8Downstream Products

13151-05-8Relevant articles and documents

Hafnocene catalysts for selective propylene oligomerization: Efficient synthesis of 4-methyl-1-pentene by β-methyl transfer

Suzuki, Yasuhiko,Yasumoto, Takahiro,Mashima, Kazushi,Okuda, Jun

, p. 13017 - 13025 (2008/02/08)

A series of hafnocene complexes (η5-C5Me 4R1)(η5-C5Me4R 2)HfCl2 with [R1, R2] = [H, H] (1), [Me, H] (2), [Me, Me] (3), [Et, Me] (4), [iPr, Me] (5), [SiMe 3, Me] (6), [tBu, Me] (7), [nBu, Me] (8), [tBu, Me] (9), [Et, Et] (10), [nBu, nBu] (11), [iBu, iBu] (12) was tested as catalyst precursors for propylene oligomerization. Upon activation with methylaluminoxane or [Ph 3C][B(C6F5)4]AliBu 3, complexes 2-4 and 8-12 catalyzed the dimerization of propylene to produce 4-methyl-1-pentene with selectivities ranging from 23.9 to 61.6 wt % in the product mixture. The selectivity was dependent on the nature of the substituents R1 and R2, with the highest value found for (η5-C5Me4iBu) 2HfCl2 (12). Rapid deactivation was observed for 5-7, whereas (η5-C5Me4H)2HfCl 2 (1) polymerized propylene. 4-Methyl-1-pentene is proposed to form by repeated 1,2-insertion of propylene into the hafnocene methyl cation, followed by selective β-methyl elimination. Detailed analysis of the byproduct distribution (isobutene, 1-pentene, 2-methyl-1-pentene, 2,4-dimethyl-1-pentene, 4-methyl-1-heptene, 4,6-dimethyl-1-heptene), determined by gas chromatography, was performed with the aid of a stochastic simulation involving rate constants for the propagation by insertion, β-hydride elimination, and β-methyl elimination. The rate of termination is dependent on the structure of the growing chain of the active species as well as on the bulkiness of the cyclopentadienyl ligands. The selectivity highly depends on the reaction conditions (pressure, temperature, concentration of methylaluminoxane). The rates of β-methyl elimination leading to 4-methyl-1-pentene were proportional to propylene pressure for 2-4 and 8-10 but practically independent from propylene pressure for the sterically bulkier derivatives 11-12.

On the Mechanism of Oligomerization of Propylene by (C5Me5)2MCl2/Methylalumoxane Catalysts (M=Zr, Hf)

Mise, Takaya,Kageyama, Akiko,Miya, Shinya,Yamazaki, Hiroshi

, p. 1525 - 1528 (2007/10/02)

In the oligomerization of propylene by (C5Me5)2MCl2 (M=Zr, Hf)/methylalumoxane, formation of abnormal oligomers such as 1-pentene(C5), 2,4-dimethyl-1-pentene(C7), 4-methyl-1-heptene(C8), and 2,4,6-trimethyl-1-heptene(C10) besides normal oligomers such as 4-methyl-1-pentene(C6) and 4,6-dimethyl-1-heptene(C9) is indicative of the mixing of unusual β-CH3 and usual β-H transfer terminations from each growing carbon chain which was initiated by insertion of propylene into either M-H or M-Me bond.

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