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90992-13-5

90992-13-5

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90992-13-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90992-13-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,9,9 and 2 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90992-13:
(7*9)+(6*0)+(5*9)+(4*9)+(3*2)+(2*1)+(1*3)=155
155 % 10 = 5
So 90992-13-5 is a valid CAS Registry Number.

90992-13-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-benzylideneisochromen-1-one

1.2 Other means of identification

Product number -
Other names 1H-2-Benzopyran-1-one,3,4-dihydro-4-(phenylmethylene)-,(Z)

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:90992-13-5 SDS

90992-13-5Downstream Products

90992-13-5Relevant articles and documents

SYNTHESIS OF ISOCOUMARINS VIA THALLATION-OLEFINATION OF BENZOIC ACIDS

Larock, R. C.,Varaprath, S.,Lau, H. H.,Fellows, C. A.

, p. 5274 - 5284 (1984)

Benzoic acid and substituted benzoic acids are readily thallated by thallium(III) trifluoroacetate and subsequently reacted with palladium chloride and simple olefins, allylic halides, vinyl halides, or vinyl esters to give isocoumarins.The organic halide reactions are catalytic in palladium. 1,2- and 1,3-dienes also react catalytically to afford 4-alkylidene- and 3-vinyl-3,4-dihydroisocoumarins, respectively.Vinylcyclopropanes also afford 3-vinyl-3,4-dihydroisocoumarins.This highly convenient thallation-olefination approach appears quite general for the synthesis of isocoumarins.

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