123433-61-4Relevant academic research and scientific papers
Studies of the asymmetric [2+2] cycloaddition of silylketenes and aldehydes employing Ti-TADDOL catalysts
Yang, Hong Woon,Romo, Daniel
, p. 2877 - 2880 (2007/10/03)
Ti-TADDOL catalysts provide good reactivity and moderate enantioselectivity in the asymmetric [2+2] cycloaddition of silyl ketenes and aldehydes. The effects of potential bidentate chelation of benzyloxy substituted aldehydes and of the steric size of the ketene silyl group were studied.
A new approach to the preparation of 2-substituted tetrahydrofurans with alpha-syn selectivity
Mead,Yang
, p. 6829 - 6832 (2007/10/02)
A strategy for selectively preparing 2-substituted tetrahydrofurans bearing α-syn side chain stereochemistry, based on intramolecular 2-oxetanone ring opening, has been demonstrated. A new approach to the preparation of 3,4-disubstituted 2-oxetanones is also presented.
SYSTHESIS AND INTRAMOLECULAR RING CLEAVAGE OF 2-OXETANONES
Mead, Keith T.,Samuel, Beverly
, p. 6573 - 6576 (2007/10/02)
Intermolecular 2+2 aldehyde-ketene cycloaddition, followed by Lewis acid induced intramolecular ring opening of the 2-oxetanone product have been used to prepare tetrahydrofuran and tetrahydropyran ring systems.
