作者:Alan R. Katritzky、Ashraf A.A. Abdel-Fattah、Krzysztof R. Idzik、Bahaa El-Dien M. El-Gendy、Jadwiga Soloducho
DOI:10.1016/j.tet.2007.04.021
日期:2007.7
Reactions of readily available and stable 1-(α-alkoxyalkyl)benzotriazoles type 9a,b and 10a–d with a variety of silyl enol ethers 11 or 1,3-dicarbonyl compounds 13 give the expected ketones 12a–l (60–92%), β-keto esters 14a,b (62–67%), and malonates 14c,d (79–88%) in which a tetrahydrofuran or tetrahydropyran moiety has been introduced at the α position. 1-(Benzotriazol-1-yl)alkyl esters 7 are converted
易于获得且稳定的9a,b和10a - d型1-(α-烷氧基烷基)苯并三唑与各种甲硅烷基烯醇醚11或1,3-二羰基化合物13的反应可得到预期的酮12a - 1(60-92% ),β-酮酸酯14a,b(62-67%)和丙二酸酯14c,d(79-88%),其中在α位置引入了四氢呋喃或四氢吡喃部分。1-(苯并三唑-1-基)烷基酯7被氰化物阴离子转化为氰醇酯15a – i (55–98%)。