138722-14-2Relevant academic research and scientific papers
Highly stereoselective synthesis of indanes with four stereogenic centers via sequential Michael reaction and [3+2] cycloaddition
Chua, Pei Juan,Tan, Bin,Yang, Limin,Zeng, Xiaofei,Zhu, Di,Zhong, Guofu
supporting information; experimental part, p. 7611 - 7613 (2010/11/05)
A highly efficient organocatalytic sequential reaction involving Michael addition of bis(phenylsulfonyl)ethylene, in situ condensation and intramolecular nitrone [3+2] cycloaddition with a variety of aldehydes and hydroxyamines to afford a single diastereomer of indanes with four stereogenic centers in excellent yields and stereoselectivities was developed.
Syntheses and Transformations of 2,6-Epoxy-4H-3-benzoxocin-4-ones
Wuensch, Bernhard,Bauschke, Gerd
, p. 345 - 350 (2007/10/02)
Four variations for the preparation of 5 are described: acid-catalyzed cyclisation of the methoxy acid 4a, base-catalyzed lactonisation of the hydroxy ester 6b, DCC-mediated dehydration of the hydroxy acid 6a and PCC oxidation of the hemiacetals 17a and 1
