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620-83-7

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620-83-7 Usage

Synthesis Reference(s)

Tetrahedron Letters, 29, p. 6121, 1988 DOI: 10.1016/S0040-4039(00)82282-0

Check Digit Verification of cas no

The CAS Registry Mumber 620-83-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,2 and 0 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 620-83:
(5*6)+(4*2)+(3*0)+(2*8)+(1*3)=57
57 % 10 = 7
So 620-83-7 is a valid CAS Registry Number.
InChI:InChI=1/C14H14/c1-12-7-9-14(10-8-12)11-13-5-3-2-4-6-13/h2-10H,11H2,1H3

620-83-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-Methyldiphenylmethane

1.2 Other means of identification

Product number -
Other names Benzene, 1-methyl-4-(phenylmethyl)-

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:620-83-7 SDS

620-83-7Relevant articles and documents

REACTIVE FORM OF 12-MOLYBDOSILICATE CATALYST ON FRIEDEL-CRAFTS-TYPE REACTION

Nomiya, Kenji,Sasa, Sadayoshi,Miwa, Makoto

, p. 1075 - 1076 (1980)

Stepwise replacement of protons in H4 by tetrabutylammonium cation and catalysis by the replaced compounds for alkylation of toluene with benzyl chloride have been investigated.Only threeprotonated compound showed comparable activity with that of parent one.

High alkylation activities of ball-milled synthesized low-load supported iron oxide nanoparticles on mesoporous aluminosilicates

Pineda, Antonio,Balu, Alina M.,Campelo, Juan Manuel,Luque, Rafael,Romero, Antonio Angel,Serrano-Ruiz, Juan Carlos

, p. 65 - 69 (2012)

Low-load iron oxide nanoparticles on Al-SBA-15 prepared using a novel dry milling approach exhibited excelling activities in the microwave-assisted akylation of toluene with benzyl chloride (Lewis acids promoted reaction) and benzyl alcohol (Br?nsted acids promoted reaction) as compared to the parent Al-SBA-15 and similar iron oxide nanoparticles supported on Al-MCM-41 materials. Materials prepared using the milling protocol possessed remarkably low iron loadings (0.1 wt%) but featured highly accessible sites and small nanoparticle sizes that seemed to be related to the observed differences in activities in the systems.

-

Ballester,Molinet

, p. 151,156 (1958)

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Hydrothermal etching assisted crystallization: A facile route to functional yolk-shell titanate microspheres with ultrathin nanosheets-assembled double shells

Li, Wei,Deng, Yonghui,Wu, Zhangxiong,Qian, Xufang,Yang, Jianping,Wang, Yao,Gu, Dong,Zhang, Fan,Tu, Bo,Zhao, Dongyuan

, p. 15830 - 15833 (2011)

We report a facile "hydrothermal etching assisted crystallization" route to synthesize Fe3O4@titanate yolk-shell microspheres with ultrathin nanosheets-assembled double-shell structure. The as-prepared microspheres possess a uniform size, tailored shell structure, good structural stability, versatile ion-exchange capability, high surface area, large magnetization, and exhibit a remarkable catalytic performance.

Multifunctional oxygen vacancies in WO3–x for catalytic alkylation of C–H by alcohols under red-light

Gu, Xianmo,Sun, Xichen,Wang, Yunwei,Zhang, Jin,Zheng, Zhanfeng,Zhu, Pengqi

, p. 208 - 217 (2021/09/06)

Surface reaction kinetics and light absorption properties of a photocatalyst are essential demands for efficiently solar to chemical energy converting. In this study, plasmonic WO3–x was firstly applied to photocatalytic alkylation of arenes under red light irradiation. The oxygen vacancies, both on the surface and in the bulk of WO3–x, allow abundant free electrons to increase carrier densities and support its LSPR using low energy photons. The surface oxygen vacancies have more functions: they not only release surface tungsten sites which ensure the chemisorption of alcohols due to the coordianation ability but also promote the activation of alcohols via an efficient transport of the holes on the neighbouring O sites to chemisorption alcohol species. In brief, the bulk oxygen vacancies provide abundant charges and the surface vacancies promote the bond adsorption and activation abilities, which ensure the high efficiency of photocatalytic alkylation of C–H.

Conversion of Aryl Aldehydes to Benzyl Iodides and Diarylmethanes by H3PO3/I2

Lv, Fang,Xiao, Jing,Xiang, Junchun,Guo, Fengzhe,Tang, Zi-Long,Han, Li-Biao

, p. 3081 - 3088 (2021/02/01)

For the first time, H3PO3 was used as both the reducing reagent and the promotor in the reductive benzylation reactions with aryl aldehydes. By using a H3PO3/I2 combination, various aromatic aldehydes underwent iodination reactions and Friedel-Crafts type reactions with arenes via benzyl iodide intermediates, readily producing benzyl iodides and diarylmethanes in good yields. Intramolecular cyclization reactions also took place, giving the corresponding cyclic compounds. This new strategy features easy-handling, low-cost, and metal-free conditions.

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