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[ CAS No. 144584-66-7 ] {[proInfo.proName]}

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Chemical Structure| 144584-66-7
Chemical Structure| 144584-66-7
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Product Details of [ 144584-66-7 ]

CAS No. :144584-66-7 MDL No. :MFCD01631385
Formula : C7H3BrF2O2 Boiling Point : No data available
Linear Structure Formula :- InChI Key :LSZYHXNOLVSZHH-UHFFFAOYSA-N
M.W : 237.00 Pubchem ID :2773297
Synonyms :

Safety of [ 144584-66-7 ]

Signal Word:Warning Class:
Precautionary Statements:P261-P305+P351+P338 UN#:
Hazard Statements:H302-H315-H319-H335 Packing Group:
GHS Pictogram:

Application In Synthesis of [ 144584-66-7 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 144584-66-7 ]

[ 144584-66-7 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 1583-59-1 ]
  • [ 144584-66-7 ]
YieldReaction ConditionsOperation in experiment
With n-butyllithium; bromine; In tetrahydrofuran; hexane; water; STR15 To 15.8 g (0.1 mol) of <strong>[1583-59-1]2,2-difluorobenzodioxole</strong> (compare e.g. DE-OS (German Published Specification) 19 21 741) in 80 ml of absolute tetrahydrofuran are added dropwise under a dry nitrogen atmosphere at -78 C. within 1 hour with stirring 45 ml (0.11 mol) of n-butyllithium (2.5 molar in n-hexane), and after stirring for 1 hour at -78 C. 16 g (0.1 mol) of bromine are then added dropwise with stirring at -78 C. The mixture is stirred for a further 90 minutes at -78 C. then allowed to come to room temperature, and is hydrolyzed with 75 ml of 10 per cent hydrochloric acid. For work-up the organic phase is separated off, washed with 1 normal hydrochloric acid, dried over sodium sulphate, concentrated in vacuo and the residue is distilled in a water pump vacuum. 11.3 g (46% of theory) of 4-bromo-<strong>[1583-59-1]2,2-difluorobenzodioxole</strong> are obtained of boiling point 74 C. to 75 C. at 20 mbar.
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