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179057-31-9

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179057-31-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 179057-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,9,0,5 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 179057-31:
(8*1)+(7*7)+(6*9)+(5*0)+(4*5)+(3*7)+(2*3)+(1*1)=159
159 % 10 = 9
So 179057-31-9 is a valid CAS Registry Number.

179057-31-9SDS

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-(OXAZOL-5-YL)BENZALDEHYDE

1.2 Other means of identification

Product number -
Other names 4-oxazol-5-yl-benzaldehyde

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:179057-31-9 SDS

179057-31-9Relevant articles and documents

Reaction Conditions for the Regiodivergent Direct Arylations at C2- or C5-Positions of Oxazoles using Phosphine-Free Palladium Catalysts

Shi, Xinzhe,Soulé, Jean-Fran?ois,Doucet, Henri

, p. 4748 - 4760 (2019/09/12)

Two sets of reaction conditions for the regiodivergent C2- or C5- direct arylations of oxazole are reported. In both cases, phosphine-free catalysts and inexpensive bases were employed allowing the access to the arylated oxazoles in moderate to high yields. Using Pd(OAc)2/KOAc as catalyst and base, regioselective C5-arylations were observed; whereas, using Pd(acac)2/Cs2CO3 system, the arylation occurred at the C2-position of oxazole. The higher reactivity of C5-H bond of oxazole as compared to the C2-H bond in the presence of Pd(OAc)2/KOAc system is consistent with a concerted metalation deprotonation mechanism; whereas the C2-arylation likely occurs via a simple base deprotonation of the oxazole C2-position. Then, from these C2- or C5-arylated oxazoles, a second palladium-catalyzed direct C?H bond arylation affords 2,5-diaryloxazoles with two different aryl groups. We also applied these sequential arylations to the straightforward synthesis of 2-arylphenanthro[9,10-d]oxazoles via three C?H bond functionalization steps. The Ru-catalyzed C?H arylation of the aryl unit of 2-aryloxazoles is also described. (Figure presented.).

DIAGNOSTIC AND REMEDY FOR DISEASE CAUSED BY AMYLOID AGGREGATION AND/OR DEPOSITION

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Page/Page column 26, (2008/12/07)

To provide a diagnostic drug which binds specifically to an amyloid aggregate and/or an amyloid deposit, to thereby realize imaging and quantification of a disease caused by amyloid aggregation and/or deposition. The invention provides a compound represented by formula (1) : (wherein X1 represents an optionally substituted bicyclic heterocyclic group; X2 represents a hydrogen atom, a halogen atom, or a chelate-forming group; ring A represents a benzene ring or a pyridine ring; and ring B represents an optionally substituted 5-membered aromatic heterocyclic group which is bonded to the benzene ring or the pyridine ring via a carbon atom of ring B), a salt thereof, a solvate of any of these, or a transition metal coordination compound of any of these, and a diagnostic, preventive, or therapeutic drug containing the same.

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