Tetrahedron

Amberlyst®-15: a reusable heterogeneous catalyst for the dehydration of tertiary alcohols

LMT Frija, CAM Afonso

文献索引：Frija, Luis M.T.; Afonso, Carlos A.M. Tetrahedron, 2012 , vol. 68, # 36 p. 7414 - 7421

被引用次数: 9

摘要

Tertiary alcohols react under mild conditions in the presence of Amberlyst®-15 (dry)(solid- supported sulfonic acid) to give predominantly the most stable alkene in very good yield. The dehydration of tertiary alcohol functionality occurs without observation of rearrangement and polymerization products, and with outstanding substrate tolerance, which include the NHCBz, NHBoc, OSEM, OTBDMS, OBOM and ethylene ketal functional groups. Amberlyst ...

~82%

查看详情

~76%

查看详情

查看详情

查看详情

~88%

查看详情

查看详情

~90%

查看详情

Selective cleavage of ethers using silica-alumina gel cataly...

[Matsumoto, Yoshihiko; Mita, Keisuke; Hashimoto, Keiji; Iio, Hideo; Tokoroyama, Takashi Tetrahedron, 1996 , vol. 52, # 28 p. 9387 - 9398]

A novel, chemoselective and efficient microwave-assisted dep...

[Saxena, Ira; Deka, Nabajyoti; Sarma, Jadab C.; Tsuboi, Sadao Synthetic Communications, 2003 , vol. 33, # 23 p. 4005 - 4011]

Effective deprotection of 2-(trimethylsilylethoxy) methylate...

[Kan, Toshiyuki; Hashimoto, Masaru; Yanagiya, Mitsutoshi; Shirahama, Haruhisa Tetrahedron Letters, 1988 , vol. 29, # 42 p. 5417 - 5418]