Phenyltrimethylammonium perbromide
Webbromination either with phenyltrimethylammonium perbromide (PTAB) in dry THF [18], or with NBS and AIBN (2,2´-azobisisobutyronitrile) in CCl4 [19]. However, all of them gave both mono- and di-bromodeoxyvasicinone and also product of elimination of monobrominated derivative. Finally we found out that reaction of 4 with NaH and Br2 gave monobromo- WebApr 15, 2001 · (α‐bromination of acetals;1-5selective bromination of ketones;1, 6oxidation of tosylhydrazones to tosylazoalkenes7) Alternate Names:phenyltrimethylammonium tribromide; PTAB; PTT. Physical Data:mp 115.5–116.5 °C. Solubility:very sol THF, CH2Cl2; …
Phenyltrimethylammonium perbromide
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http://www.commonorganicchemistry.com/Common_Reagents/Phenyltrimethylammonium_Perbromide/Phenyltrimethylammonium_Perbromide.htm#:~:text=Phenyltrimethylammonium%20bromide-perbromide%20General%20Information%3A%20Structure%3A%20CAS%20Number%3A%204207-56-1,C%20Common%20Uses%3A%20Reagent%20used%20for%20bromination%20reactions WebAug 18, 2006 · In this context phenyltrimethylammonium tribromide [23] pyridinium bromide perbromide [24], N -bromamides [12] have been reported in the literature for the aziridination of alkenes using Chloramine-T as nitrene donor.
http://www.orgsyn.org/demo.aspx?prep=CV6P0175 WebPhenyltrimethylammonium bromide dibromide, Phenyltrimethylammonium bromide-perbromide, Phenyltrimethylammonium tribromide Linear Formula: (CH3)3N (Br3)C6H5 CAS Number: 4207-56-1 Molecular Weight: 375.93 Beilstein: 3919459 EC Number: 224-127-8 MDL number: MFCD00011789 PubChem Substance ID: 24848427 NACRES: NA.22
WebSELECTIVE a-BROMINATION OF AN ARALKYL KETONE WITH PHENYLTRIMETHYLAMMONIUM TRIBROMIDE 2-BROMOACETYL-6-METHOXYNAPHTHALENE AND 2,2-DIBROMOACETYL-6-METHOXYNAPHTHALENE... [Pg.111] Treatment with bromine and a catalytic amount of phosphorus leads to the … Webwhich is used for the same type of brominations as phenyltrimethylammonium perbromide (PTAB).7 We found that PTAB also reacts with , to give , in 60% yield. Use of the bromine/pyridine conditions for bromination of k was somewhat encouraging; the product mixture appeared to contain some of the desired product by NMR spectroscopy.
WebTrimethylphenylammonium tribromide Synonyms: Phenyltrimethylammonium bromide dibromide, Phenyltrimethylammonium bromide-perbromide, Phenyltrimethylammonium …
WebNov 15, 2004 · For example, bromine-based catalysts such as phenyltrimethylammonium tribromide, 7 pyridiniumbromide perbromide, 8 and N-bromamides 9 are very efficient catalysts for the aziridination of olefins using Chloramine-T as the nitrogen source, but these systems are not easily accessible. handheld foam roller gaiamhttp://www.orgsyn.org/demo.aspx?prep=CV6P0175 handheld fob writerWebphenyltrimethylammonium tribromide (PTT), also known as phenyltrimethylammonium perbromide, a compound used in the allylic bromination of an oxo group or a cyclic ketal without attacking aromatic rings [17-20]. The reaction of precocene I (1) with PTT afforded the bromo-precocene derivative 5 and a mixture busherstown houseWebSep 1, 2004 · bromination either with phenyltrimethylammonium . perbromide (PTAB) in dry THF [18], or with NBS and . AIBN (2,2´-azobisisobutyronitrile) in CCl 4 [19]. However, all of them gave both mono- and di- bushers software downloadWebSelective α-Bromination of an Aralkyl Ketone with Phenyltrimethylammonium Tribromide: 2-Bromoacetyl-6-Methoxynaphthalene and 2,2-Dibromoacetyl-6-Methoxynaphthalene. 2003,,, 111-111. DOI: 10.1002/0471264180.os053.26. Norbert De Kimpe. Phenyltrimethylammonium Perbromide. 2001,, DOI: 10.1002/047084289X.rp144. handheld focused revision switchWebSynonyms : Phenyltrimethylammonium bromide-perbromide Phenyltrimethylammonium bromide dibromide Phenyltrimethylammonium tribromide Formula : C9H14Br3N Molecular weight : 375.93 g/mol CAS-No. : 4207-56-1 EC-No. : 224-127-8 Hazardous components Component Classification Concentration Phenyltrimethylammonium tribromide hand held foam rollerWebApr 15, 2001 · (α‐bromination of acetals;1-5selective bromination of ketones;1, 6oxidation of tosylhydrazones to tosylazoalkenes7) Alternate Names:phenyltrimethylammonium tribromide; PTAB; PTT. Physical Data:mp 115.5–116.5 °C. Solubility:very sol THF, CH2Cl2; sol acetic acid. Form Supplied in:orange crystals; widely available. busher toluca