The MeOPEG-supported azide 2 was reacted in the presence of a number of alkynyl dipolarophiles. The corresponding 1-MeOPEG-supported-1,2,3-triazoles were obtained in nearly quantitative yields. Acidic hydrolysis of the cycloadducts 5b and 6b caused the removal of the MeOPEG pendant giving 4-methoxycarbonyl-1,2,3-triazole 9 and 5-methoxycarbonyl-1,2,3-triazole 10, respectively. (C) 2003 Elsevier Science Ltd. All rights reserved.
MeOPEG-bounded azide cycloadditions to alkynyl dipolarophiles / L. Garanti, G. Molteni. - In: TETRAHEDRON LETTERS. - ISSN 0040-4039. - 44:6(2003), pp. 1133-1135.
MeOPEG-bounded azide cycloadditions to alkynyl dipolarophiles
G. Molteni
2003
Abstract
The MeOPEG-supported azide 2 was reacted in the presence of a number of alkynyl dipolarophiles. The corresponding 1-MeOPEG-supported-1,2,3-triazoles were obtained in nearly quantitative yields. Acidic hydrolysis of the cycloadducts 5b and 6b caused the removal of the MeOPEG pendant giving 4-methoxycarbonyl-1,2,3-triazole 9 and 5-methoxycarbonyl-1,2,3-triazole 10, respectively. (C) 2003 Elsevier Science Ltd. All rights reserved.
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