1122-85-6Relevant articles and documents
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Pankratov et al.
, (1974)
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Kricheldorf
, p. 561 (1974)
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Highly Enantioselective α-Cyanation with 4-Acetylphenyl Cyanate
Qiu, Jia-Shen,Wang, Yao-Feng,Qi, Gui-Rong,Karmaker, Pran G.,Yin, Hong-Quan,Chen, Fu-Xue
, p. 1775 - 1778 (2017)
A highly effective asymmetric version of α-cyanation of β-keto esters and amides was developed with a Lewis-acid catalyst. Thus, by using 10 mol % of a tridentate bisoxazoline–zinc(II) complex as the catalyst, a series of chiral nitriles containing a quaternary carbon center were obtained in excellent enantioselectivities (up to 97 % enantiomeric excess) and up to 95 % yield in the presence of 4 ? molar sieve at room temperature. For the first time, mild and active 4-acetylphenyl cyanate was used instead of cyano-hyperiodinate as the cationic cyano source for catalytic asymmetric α-cyanation.
Oxidative rearrangement strategy for synthesis of 2,4,5-trisubstituted oxazoles utilizing hypervalent iodine reagent
Liu, Qing,Zhang, Xiaohui,He, Yang,Hussain, Muhammad Ijaz,Hu, Wen,Xiong, Yan,Zhu, Xiangming
supporting information, p. 5749 - 5753 (2016/08/30)
Hypervalent iodine (III)-intermediated direct oxidative rearrangement of 3-hydroxybut-2-enimidates affording oxazoles under mild conditions has been developed. This protocol provides a new methodology to the synthesis of compounds containing oxazole structure.