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Volumn , Issue 7, 2007, Pages 1109-1111

Domino addition/N-C heterocyclization of azides with allenyl magnesium bromide: Rapid synthesis of 5-butynyl-1,2,3-triazoles

Author keywords

5 but 1,2,3 triazoles; Allenylmagnesium bromide; Azides

Indexed keywords

5 BUTYNYL 1,2,3 TRIAZOLE DERIVATIVE; ALLENYLMAGNESIUM BROMIDE; AZIDE; BROMINE DERIVATIVE; TRIAZOLE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 34248171136     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2007-977435     Document Type: Article
Times cited : (10)

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    • In a typical procedure, to a suspension of magnesium turnings (1.6 g, 0.07 mol) in anhyd THF with mercury(II) chloride (10 mg, 0.125 w/w of propargyl bromide) was added propargyl bromide (7.5 mL of an 80 wt% solution in toluene, 0.07 mol) in small portions while stirring the reaction mixture at r.t, Note: A small crystal of iodine is generally required to promote formation of the Grignard reagent, The mixture was stirred at r.t. for 15 min to give a cloudy light green solution. The allenylmagnesium bromide generated as above was cooled to ambient temperature and to it was added dropwise a solution of p-methoxyphenyl azide (1 g, 0.007 mol) and stirring was continued at ambient temperature for 10 min followed by quenching with an aq NH4Cl solution (10 mL) and diluting with EtOAc (50 mL, The organic layer was separated and the aqueous layer was extracted with EtOAc (2 x 20 mL, The combined organic layers were dried (anhyd Na2SO4) and evaporated under r
    • 3O: C, 68.71; H, 5.77; N, 18.49; O, 7.04. Found: C, 68.60; H, 5.81; N, 18.60; O, 6.99.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.