SHEA, K. J.;ZANDI, KATHLEEN S.;STAAB, ANDREW J.;CARR, R., TETRAHEDRON LETT., 31,(1990) N1, C. 5885-5888
作者:SHEA, K. J.、ZANDI, KATHLEEN S.、STAAB, ANDREW J.、CARR, R.
DOI:——
日期:——
Triphenylphosphine-Mediated Reduction of Electron-Deficient Propargyl Ethers to the Allylic Ethers
作者:Ming-Shan Tsai、U. Narasimha Rao、Jeng-Rong Wang、Chung-Hao Liang、Ming-Chang P. Yeh
DOI:10.1002/jccs.200100126
日期:2001.10
Semihydrogenation of α,β-unsaturated ynoates and -ynones bearing a γ-alkoxy group can be performed using triphenylphosphine and water. α,β-Unsaturated ynoates were reduced to a mixture of cis and trans α,β-unsaturated enoates, whereas, ynones were reduced to trans α,β-unsaturated enones as the only products.
Disposable tethers in type 2 intramolecular diels-alder cycloaddition reactions. Applications in stereochemical control
作者:K.J. Shea、Kathleen S. Zandi、Andrew J. Staab、R. Carr
DOI:10.1016/s0040-4039(00)97985-1
日期:1990.1
Temporary union of diene and dienophile in the type 2 intramolecularDiels-Alder cycloaddition provides a general strategy for controlling both regio- and stereochemistry of the cycloaddition.