19997-42-3

• 

• Basic information

  1. Product Name: Naphtho[2,1-b]furan-1-one
  2. Synonyms: Naphtho[2,1-b]furan-1-one
  3. CAS NO:19997-42-3
  4. Molecular Formula: C₁₂H₈O₂
  5. Molecular Weight: 184.19
  6. EINECS: N/A
  7. Product Categories: N/A
  8. Mol File: 19997-42-3.mol
  9. Article Data: 7

• Chemical Properties

  1. Melting Point: N/A
  2. Boiling Point: N/A
  3. Flash Point: N/A
  4. Appearance: /
  5. Density: N/A
  6. Refractive Index: N/A
  7. Storage Temp.: N/A
  8. Solubility: N/A
  9. CAS DataBase Reference: Naphtho[2,1-b]furan-1-one(CAS DataBase Reference)
  10. NIST Chemistry Reference: Naphtho[2,1-b]furan-1-one(19997-42-3)
  11. EPA Substance Registry System: Naphtho[2,1-b]furan-1-one(19997-42-3)

• Safety Data

  1. Hazard Codes: N/A
  2. Statements: N/A
  3. Safety Statements: N/A
  4. WGK Germany:
  5. RTECS:
  6. HazardClass: N/A
  7. PackingGroup: N/A
  8. Hazardous Substances Data: 19997-42-3(Hazardous Substances Data)

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• SDS
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• Downstream Products
• Article

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• Naphtho(2,1-b)furan-1-one

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19997-42-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19997-42-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,9 and 7 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 19997-42:
(7*1)+(6*9)+(5*9)+(4*9)+(3*7)+(2*4)+(1*2)=173
173 % 10 = 3
So 19997-42-3 is a valid CAS Registry Number.

19997-42-3SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name	benzo[e][1]benzofuran-1-one

1.2 Other means of identification

Product number	-
Other names	naphtho<2,1-b>fur-1-one

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:19997-42-3 SDS

19997-42-3Upstream product

• 708-06-5 2-hydroxynaphthalene-1-carbaldehyde 
• 120-23-0 (2-naphthoyl)oxyacetic acid 
• 79-37-8 oxalyl dichloride 
• 574-19-6 1-(2-hydroxy-1-naphthyl)ethan-1-one 
• 738589-03-2 1-acetyl-2-[(tert-butyldimethylsilyl)oxy]naphthalene 
• 79-04-9 chloroacetyl chloride 
• 135-19-3 β-naphthol 
• 704890-49-3 1-(2-bromoacetyl)-2-[(tert-butyldimethylsilyl)oxy]naphthalene 
• 40926-77-0 (2-naphthyloxy)acetyl chloride 
• 704890-48-2 1-[(trimethylsilyl)oxy]ethenyl-2-[(tert-butyldimethylsilyl)oxy]naphthalene 

19997-42-3Downstream Products

• 125240-02-0 UCCF 040 
• 300666-45-9 (S)-2,2'-bis(diphenylphosphinyl)-3,3'-binaphtho[2,1-b]furan 
• 300666-43-7 (+/-)-2,2'-bis(diphenylphosphino)-3,3'-binaphtho[2,1-b]furan 
• 88503-21-3 2-phenylmethylene-naphtho[2,1-b]furan-1(2H)-one 

19997-42-3Relevant articles and documents

A Hg(OTf)2-Catalyzed Enolate Umpolung Reaction Enables the Synthesis of Coumaran-3-ones and Indolin-3-ones

Dai, Ning,Hu, Weican,Qian, Guoying,Rong, Zhouting

, p. 3286 - 3290 (2020/04/21)

The potential of mercury catalysis has been extended to the arena of enolate umpolung reactions for the first time by the generation of enolonium species via Hg(OTf)2-catalyzed N-oxide addition to alkynes. The enolonium species formed can undergo intramolecular nucleophilic attack by hydroxyl or amino groups, leading to the synthesis of various coumaran-3-ones and indolin-3-ones.

Facile synthesis of novel fluorescence active 12H-benzo[e]indolo[3,2-b] benzofuran and its derivatives

Karnik,Upadhyay

, p. 1345 - 1348 (2007/10/03)

Successful preparation of novel penta-heterocyclic compounds, 12H-benzo[e]indolo[3,2-b]benzofurans, in good yields is reported. The synthesized compounds with planar geometry and extended conjugation exhibit excellent fluorescence properties.

Synthesis, resolution, and applications of 2,2′-bis(diphenylphosphino)-3,3′-binaphtho[2,1-d]furan

Andersen, Neil G.,Parvez, Masood,Keay, Brian A.

, p. 2817 - 2820 (2007/10/03)

A short five-step synthesis of (±)-2,2′-bis(diphenylphosphino)-3,3′-binaphtho[2,1-b]furan (BINAPFu, 1) starting from 2-naphthoxyacetic acid is reported. The resolution of BINAPFu 1 was possible using our newly developed resolution procedure for phosphines

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