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85320-16-7

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85320-16-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 85320-16-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,3,2 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 85320-16:
(7*8)+(6*5)+(5*3)+(4*2)+(3*0)+(2*1)+(1*6)=117
117 % 10 = 7
So 85320-16-7 is a valid CAS Registry Number.

85320-16-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name benzhydrylidene-(2,6-dimethylphenyl)phosphane

1.2 Other means of identification

Product number -
Other names 2,6-dimethylphenyl(diphenylmethylene)phosphine

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:85320-16-7 SDS

85320-16-7Relevant articles and documents

An Addition-Isomerization Mechanism for the Anionic Polymerization of MesP=CPh2 and m -XylP=CPh2

Rawe, Benjamin W.,Priegert, Andrew M.,Wang, Shuai,Schiller, Carl,Gerke, Sonja,Gates, Derek P.

, p. 2621 - 2629 (2018)

We report that the anionic polymerization of P-mesityl and m-xylyl-substituted phosphaalkenes follows an unusual addition-isomerization mechanism. Specifically, the polymerization of ArP=CPh2 [Ar = Mes (1a), m-Xyl (1b)] involves the hindered nucleophilic anion intermediate, a -P(Ar)-CPh2-, which undergoes a proton migration from the o-CH3 of the Mes/m-Xyl moiety to the -CPh2 moiety to afford a propagating benzylic anion. This mechanism is supported by the preparation of model compounds MeP(CHPh2)-4,6-Me2C6H2-2-CH2-CPh3 (2a) or MeP(CHPh2)-6-MeC6H3-2-CH2-CPh3 (2b), which were both crystallographically characterized. Polymerization of 1a or 1b in THF solution using n-BuLi (2 mol %) revealed 1H and 13C NMR signals assigned to -CH2- and -CHPh2 groups consistent with an addition-isomerization polymerization mechanism to afford poly(methylenephosphine) 3a or 3b. A large kinetic isotope effect (≤23) was determined for the n-BuLi-initiated polymerization of 1a-d9 compared to 1a in THF at 50 °C, consistent with C-H (or C-D) activation as the rate-determining step. This C-H activation step was modeled using DFT computations which revealed that the intramolecular proton transfer from the o-CH3 of the Mes moiety to the -CPh2 moiety has an activation energy (Ea = +18.5 kcal mol-1). For comparison, this computational value was quite close to the experimentally measured activation energy of propagation ArP=CPh2 in THF [Ea = 14.0 ± 0.9 kcal mol-1 (1a), 15.6 ± 2.8 kcal mol-1 (1b)].

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