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494968

Sigma-Aldrich

Thianaphthene-3-carboxaldehyde

95%

Synonym(s):

Benzo[b]thiophene-3-carboxaldehyde

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About This Item

Empirical Formula (Hill Notation):
C9H6OS
CAS Number:
5381-20-4
Molecular Weight:
162.21
MDL number:
MFCD00052376
UNSPSC Code:
12352100
PubChem Substance ID:
24872938
NACRES:
NA.22

Assay

95%

bp

166 °C/20 mmHg (lit.)

mp

53-57 °C (lit.)

SMILES string

O=Cc1csc2ccccc12

InChI

1S/C9H6OS/c10-5-7-6-11-9-4-2-1-3-8(7)9/h1-6H

InChI key

WDJLPQCBTBZTRH-UHFFFAOYSA-N

General description

Thianaphthene-3-carboxaldehyde, also known as benzo[b]thiophene-3-carboxaldehyde, can be synthesized from 3-methyl-benzo[b]thiophene. It undergoes phosphine-free palladium coupling with aryl halides to form 2-arylbenzo[b]thiophenes.

Application

Thianaphthene-3-carboxaldehyde (Benzo[b]thiophene-3-carboxaldehyde) may be used as a starting material in the multi-step synthesis of anthra[2,3-b:7,6-b′]bis[1benzothiophenes (ABBTs).
It may be used in the synthesis of :
  • 6-(N,N-dimethylamino)-2-(benzo[b]thiophen-3-yl)quinazolin-4-one
  • 6-(pyrrolidin-1-yl)-2-(benzo[b]thiophen-3-yl)quinazolin-4-one
  • (Z)-2-(benzo­[b]­thio­phen-3-yl­methyl­ene)-1-aza­bi­cyclo­[2.2.2]­octan-3-one

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Benzo[b]thiophene derivatives. VIII. Benzo[b]thiophene-3-earboxaldehyde and derivatives.
Campaigne E and Neiss ES.
Journal of Heterocyclic Chemistry, 3(1), 46-50 (1966)
M J Hour et al.
British journal of pharmacology, 169(7), 1574-1586 (2013-05-04)
Our previous study demonstrated that 6-(pyrrolidin-1-yl)-2-(3-methoxyphenyl)quinazolin-4-one (HMJ38) was a potent anti-tubulin agent. Here, HMJ38 was used as a lead compound to develop more potent anti-cancer agents and to examine the anti-cancer mechanisms. Using computer-aided drug design, 2-aryl-6-substituted quinazolinones (MJ compounds)
An efficient phosphine-free palladium coupling for the synthesis of new 2-arylbenzo[b]thiophenes.
Chabert JFD, et al.
Tetrahedron, 60(14), 3221-3230 (2004)
(Z)-2-(Benzo[b] thiophen-3-ylmethylene)-1-azabicyclo [2.2.2] octan-3-one.
Sonar VN, et al.
Acta Crystallographica Section E, Structure Reports Online, 59(11), o1726-o1728 (2003)
Synthesis and properties of isomerically pure anthrabisbenzothiophenes.
Lehnherr D, et al.
Organic Letters, 14(1), 62-65 (2011)

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