7-bromochroman-4-one

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7-bromochroman-4-one manufacturers

  • 7-Bromo-4-chromanone
  • 7-Bromo-4-chromanone pictures
  • $124.00
  • 2026-09-11
  • CAS:18442-22-3
  • Min. Order: 5g
  • Purity: 0.98
  • Supply Ability: 25kg
  • 7-Bromo-4-chromanone
  • 7-Bromo-4-chromanone pictures
  • 2022-01-04
  • CAS:18442-22-3
  • Min. Order: 1g
  • Purity: 98%minHPLC
  • Supply Ability: 200kgs/month
  • 7-Bromo-4-chromanone
  • 7-Bromo-4-chromanone pictures
  • $1.00
  • 2020-01-15
  • CAS:18442-22-3
  • Min. Order: 1g
  • Purity: 99%
  • Supply Ability: 1000KGS
7-bromochroman-4-one Basic information
Product Name:7-bromochroman-4-one
Synonyms:7-Bromo-4-chromanone;7-Bromo Chromonone;7-bromo-2,3-dihydrochromen-4-one;7-BroMo-4-chroManone 97%;7-Bromochroman-4-one C9H7BrO2;7-bromo-2,3-dihydrobenzopyran-4-one;4H-1-Benzopyran-4-one, 7-bromo-2,3-dihydro-;7-BROMOCHROMAN-4-ONE, CAS: 18442-22-3
CAS:18442-22-3
MF:C9H7BrO2
MW:227.05
EINECS:1308068-626-2
Product Categories:18442-22-3
Mol File:18442-22-3.mol
7-bromochroman-4-one Structure
7-bromochroman-4-one Chemical Properties
Boiling point 336.6±42.0 °C(Predicted)
density 1.621±0.06 g/cm3(Predicted)
storage temp. 2-8°C
AppearanceWhite to yellow Solid
InChIInChI=1S/C9H7BrO2/c10-6-1-2-7-8(11)3-4-12-9(7)5-6/h1-2,5H,3-4H2
InChIKeyDMEAYYYHWLCPCD-UHFFFAOYSA-N
SMILESC1OC2=CC(Br)=CC=C2C(=O)C1
Safety Information
HS Code 2932990090
MSDS Information
7-bromochroman-4-one Usage And Synthesis
UsesUsed as a intermediate for  R & D.
Synthesis7-Bromochroman-4-one was synthesized by hydrogenation addition of 7-Bromo-benzopyrone catalyzed by Wilkinson's catalyst Rhodium( Ⅰ) tris( triphenylphosphine) chloride[Rh( PPh3)3Cl]. The structure was confirmed by1 H NMR and MS. The optimum reaction conditions for synthesizing 7-Bromochroman-4-one were as follows: 5 0. 329 mol,ethanol as the solvent,c( 5) =0. 4 mol·L- 1,4% mol Rh( PPh3)3Cl as the catalyst,under 0. 3 MPa of hydrogen pressure,at 70℃ for 20 h,the yield was 79. 8%.
References[1] Patent: WO2012/68234, 2012, A2. Location in patent: Page/Page column 629; 630
[2] Patent: WO2007/88450, 2007, A2. Location in patent: Page/Page column 22
[3] Journal of Medicinal Chemistry, 2016, vol. 59, # 22, p. 10228 - 10243
[4] Patent: US2014/200215, 2014, A1. Location in patent: Paragraph 1148; 1150
[5] Patent: US2009/202478, 2009, A1
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