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2H-Naphtho[1,2-b]pyran, 2,2-dimethyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20213-32-5

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20213-32-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20213-32-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,2,1 and 3 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 20213-32:
(7*2)+(6*0)+(5*2)+(4*1)+(3*3)+(2*3)+(1*2)=45
45 % 10 = 5
So 20213-32-5 is a valid CAS Registry Number.

20213-32-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,2-dimethylbenzo[h]chromene

1.2 Other means of identification

Product number -
Other names -

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:20213-32-5 SDS

20213-32-5Relevant academic research and scientific papers

REGIOSPECIFIC CATALYTIC ALKENYLATION OF AROMATIC SUBSTRATES WITH COORDINATED DIENES: REACTIONS ON NAPHTHALENE DERIVATIVES. PRELIMINARY RESULTS ON HETEROAROMATIC SUBSTRATES

Renzi, Augusto De,Lombardi, Angelina,Panunzi, Achille,Saporito, Antonio

, p. 657 - 660 (2007/10/02)

α- and β-naphthol undergo regiospecific alkenylation by 1,1-dimethylallene (DMA) at the OH-adjacent β- and α-positions, respectively, when allowed to react with DMA-Pt(II) complex.A catalytic process can be achieved with conversions higher than 90percent.A Pd(II) complex as promotor and isoprene as alkenylating diene can also be used.Similar results were obtained with N-acetyl-β-naphthylamine.Preliminary results indicated that nitrogen-containing heteroaromatic substrates can afford N-, O- or C-isopentenyl derivatives depending on the particular features of the organic ring.

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