An efficient protocol for the enantioselective preparation of a key polyfunctionalized cyclohexane. New access to (R)- and (S)-4-hydroxy-2- cyclohexenone and (R)- and (S)-trans-cyclohex-2-ene-1,4-diol
(Chemical Equation Presented) Starting from very accessible raw materials such as p-methoxyphenol, ethylene glycol, and thiophenol, a protocol has been developed to prepare multigram quantities of the polyfunctionalized cyclohexane (±)-7. A highly efficie
Conjugate addition of thiols to p-benzoquinone monoketals. Attempts to prepare chiral synthetic equivalents of p-benzoquinone
The conjugate addition of several thiols to achiral and chiral p-benzoquinone monoketals has been studied. A chiral synthetic equivalent of p-benzoquinone has been obtained in both enantiopure forms. Springer-Verlag lberica 1997.
De March,Escoda,Figueredo,Font,Mcdrano
p. 81 - 87
(2007/10/03)
Efficient masking of p-benzoquinone in nitrone cycloaddition chemistry
1,3-Dipolar cycloadditions of five and six membered cyclic nitrones to p-benzoquinone monoketals have shown poor chemo- and stereoselectivity. To overcome these problems, a highly efficient strategy has been set up based on the temporary conjugate addition of thiophenol to the dipolarophile.
De Marcha, Pedro,Escoda, Maria,Figueredo, Marta,Font, Josep
p. 8665 - 8668
(2007/10/02)
More Articles about upstream products of 173383-41-0