Home Cart Sign in  
Chemical Structure| 19932-84-4 Chemical Structure| 19932-84-4
Chemical Structure| 19932-84-4

*Storage: {[sel_prStorage]}

*Shipping: {[sel_prShipping]}

,{[proInfo.pro_purity]}

4.5 *For Research Use Only !

{[proInfo.pro_purity]}
Cat. No.: {[proInfo.prAm]} Purity: {[proInfo.pro_purity]}

Change View

Size Price VIP Price

US Stock

Global Stock

In Stock
{[ item.pr_size ]} Inquiry {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate,item.pr_is_large_size_no_price, item.vip_usd) ]}

US Stock: ship in 0-1 business day
Global Stock: ship in 5-7 days

  • {[ item.pr_size ]}

In Stock

- +

Please Login or Create an Account to: See VIP prices and availability

US Stock: ship in 0-1 business day
Global Stock: ship in 2 weeks

  • 1-2 Day Shipping
  • High Quality
  • Technical Support
Product Citations

Alternative Products

Product Details of 6-Chloro-2-benzoxazolinone

CAS No. :19932-84-4
Formula : C7H4ClNO2
M.W : 169.57
SMILES Code : ClC1=CC2=C(NC(=O)O2)C=C1
MDL No. :MFCD00463914
Boiling Point : No data available
InChI Key :MATCZHXABVLZIE-UHFFFAOYSA-N
Pubchem ID :29858

Safety of 6-Chloro-2-benzoxazolinone

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P305+P351+P338

Application In Synthesis of 6-Chloro-2-benzoxazolinone

* 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 [ 19932-84-4 ]

[ 19932-84-4 ] Synthesis Path-Downstream   1~3

  • 1
  • [ 50-00-0 ]
  • [ 19932-84-4 ]
  • [ 29608-05-7 ]
  • [ 108176-86-9 ]
  • 2
  • [ 19932-84-4 ]
  • [ 95-50-1 ]
  • [ 3621-82-7 ]
YieldReaction ConditionsOperation in experiment
99.7%. With phosphorus pentachloride; EXAMPLE 1 1 litre of o-dichlorobenzene and 625 g (3 moles) of phosphorus pentachloride are heated to 160° C., then 169.5 g (1 mole) of solid 6-chlorobenzoxazolin-2-one are introduced in small portions over the course of 60 minutes, vigorous evolution of hydrogen chloride occuring for a short time after each portion. The mixture is then stirred for a further 15 minutes at 150°-160° C., and then cooled to 0° C., whereupon the major part of the excess pCl5 crystallises out. The phosphorus pentachloride precipitate is filtered off with suction, Washed with a little cold o-dichlorobenzene, and the filtrate is fractionated under reduced pressure. phosphorus oxychloride distils over first, then o-dichlorobenzene together with the remainder of the excess phosphorus pentachloride, and last, at about 110° C. and 17.3 mbar, 2,6-dichlorobenzoxazole. About 136 g of 2,6-dichlorobenzoxazole of melting point 48-49° C. are obtained. GC purity 99.7percent. yield: 72percent of theory. The recovered phosphorus pentachloride and o-dichlorobenzene can be used again for the next batch.
  • 3
  • [ 19932-84-4 ]
  • [ 3621-82-7 ]
YieldReaction ConditionsOperation in experiment
95.2% With iron(III) chloride; phosphorus pentachloride; In toluene; at 60℃; for 0.5h; In a 500 ml three-necked flask, 250 ml of toluene was added, 0.1 mol of 6-chlorobenzoxazolone, 25 g of phosphorus pentachloride, 0.5 g of polyphosphoric acid and 0.5 g of ferric chloride were added, and the mixture was heated to 60 C with stirring. After stirring for 0.5 h,After the post-treatment, the product had a content of 2,6-dichlorobenzoxazole of 98.5% and a yield of 95.2 %
29.33 g With pyridine; trichlorophosphate; at 100℃; for 10.5h; The temperature of the above reaction solution is raised to about 100 C. 19.0 g of pyridine (molecular weight 79.1, 0.24 mol) was added dropwise. The dropping time is about 30 minutes. After the addition is completed, the temperature is raised to reflux. React under reflux conditions for about 10 hours, Sampling analysis, The content of 6-chlorobenzoxazolone is less than 1% as the end of the reaction; Atmospheric distillation, Removing the remaining phosphorus oxychloride; Vacuum distillation, Heating temperature is about 120 C, Oil pump decompression, Vacuum degree 1-3Kpa, Separating the product 29.33g, White crystal, Yield 78%, The qualitative content is 99%.
 

Historical Records

Categories