Deprotection of Homoallyl (hAllyl) Derivatives of Phenols, Alcohols, Acids, and Amines
摘要:
The homoallyl moiety, (h)Allyl, is presented as a general protecting group for several functionalities. It can be chemoselectively removed via a sequential, one-pot cross-metathesis/elimination sequence.
General and Practical Potassium Methoxide/Disilane-Mediated Dehalogenative Deuteration of (Hetero)Arylhalides
作者:Xin Wang、Ming-Hui Zhu、David P. Schuman、Dayou Zhong、Wen-Yan Wang、Lin-Yang Wu、Wei Liu、Brian M. Stoltz、Wen-Bo Liu
DOI:10.1021/jacs.8b07597
日期:2018.9.5
Herein we describe a general, mild and scalable method for deuterium incorporation by potassium methoxide/hexamethyldisilane-mediated dehalogenation of arylhalides. With CD3CN as a deuterium source, a wide array of heteroarenes prevalent in pharmaceuticals and bearing diverse functional groups are labeled with excellent deuterium incorporation (>60 examples). The ipso-selectivity of this method provides
在此,我们描述了一种通过甲醇钾/六甲基乙硅烷介导的芳基卤化物脱卤来掺入氘的通用、温和且可扩展的方法。以 CD3CN 作为氘源,广泛存在于药物中并具有不同官能团的杂芳烃被标记为具有优异的氘掺入(> 60 个例子)。这种方法的 ipso 选择性提供了对氘代吲哚和喹啉库的精确访问。我们方法的合成效用已通过将氘掺入复杂的天然和类药物化合物中得到证明。
Deprotection of Homoallyl (<sup>h</sup>Allyl) Derivatives of Phenols, Alcohols, Acids, and Amines
作者:Bruce H. Lipshutz、Subir Ghorai、Wendy Wen Yi Leong
DOI:10.1021/jo900012z
日期:2009.4.3
The homoallyl moiety, (h)Allyl, is presented as a general protecting group for several functionalities. It can be chemoselectively removed via a sequential, one-pot cross-metathesis/elimination sequence.