메뉴 건너뛰기




Volumn , Issue 13, 2009, Pages 2162-2166

'Click' chemistry on sugar-derived alkynes: A tandem 'click-click' approach to bistriazoles

Author keywords

'Click' reaction; Alkyne; Azide; Azido alkyne; Bistriazole; C glycoside; Triazole

Indexed keywords

ALKYNE DERIVATIVE; BISTRIAZOLE DERIVATIVE; TRIAZOLE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 68949156523     PISSN: 09365214     EISSN: 14372096     Source Type: Journal    
DOI: 10.1055/s-0029-1217570     Document Type: Article
Times cited : (23)

References (53)
  • 4
  • 28
    • 68949123388 scopus 로고    scopus 로고
    • For an updated list, see
    • For an updated list, see: http://www.scripps.edu/chem/sharpless/click. html
  • 49
    • 68949094687 scopus 로고    scopus 로고
    • Typical procedure for the simple 'click' reaction: To a solution of alkyne 3 (0.050 g, 0.19 mmol) and azide 5 (0.026 g, 0.19 mmol) in MeCN (1.9 mL) were added CuI (0.0746 g, 0.38 mmol) and DIPEA (0.1 mL, 0.57 mmol) successively at r.t. After stirring for 30 min, the reaction was quenched by adding sat. aq NH4Cl (10 mL, The organic layer was separated and the aqueous layer was extracted with EtOAc (3 x 20 mL, After washing with brine (20 mL, the organic layer was dried over Na2SO4, filtered and concentrated in vacuo to give the crude product, which was purified by recrystallisation from CH2Cl2-hexanes. The mother liquor was further purified by column chromatography (hexanes-EtOAc, 1.5:1) to afford triazole 12 (0.065 g, 85, Rf, 0.62 (EtOAc-hexanes, 1:1, mp 155-157°C; [a]20D -83.880 (c 0.21, CHCl3, 1H NMR 400 MHz, CDCl 3
    • 3: 388.1872; found: 388.1892.
  • 53
    • 68949102680 scopus 로고    scopus 로고
    • Typical procedure for the double 'click' reaction: To methyl propiolate 32 (0.024 mL, 0.27 mmol) in MeCN (1.5 mL) was added CuI (0.105 g, 0.552 mmol) and DIPEA (0.147 mL, 0.82 mmol, The reaction mixture became a clear solution. The azido-alkyne 31 (0.050 g, 0.27 mmol) was added and the reaction was stirred for 1 h (reaction monitored by TLC, Then, azide 6 (0.27 mmol) was added and the reaction was stirred for 15 minutes. The reaction was quenched by the addition of sat. aq NH4Cl (10 mL, the organic layer was separated and the aqueous layer was extracted with EtOAc (3 x 20 mL, After washing with brine (20 mL, the organic layer was dried over Na2SO4 and concentrated in vacuo to give the crude product, which was purified by recrystallization from CH2Cl 2-hexanes. The mother liquor was purified by column chromatography (hexanes-EtOAc, 1:1.5) to afford triazole 35 0.050 g, 46, Compound 35
    • 2: 218.0861; found: 218.0865.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.