Reagent design and study of allene as a promising class of reagents (synthons) for cycloaddition. The site-selective and regioselective Diels-Alder reactions of (phenylsulfonyl)propadiene and alkylation of the adducts
作者:Kenji Hayakawa、Hitoshi Nishiyama、Ken Kanematsu
DOI:10.1021/jo00204a018
日期:1985.2
Rhodium catalyzed hydroformylation of 2-phenylsulfonylbicyclo[2.2.1] alkenes: effect of the phenylsulfonyl group
The preliminary results of the hydroformylation of 2-phenylsulfonyl substituted norbornene and norbornadiene derivatives catalyzed by the unmodified Rh(CO)(2)acac system are presented. The reaction, occurring under standard oxo conditions, gives polyfunctionalized exo norbornene- and exo norbornanecarboxaldehydes. The effect of the phenylsulfonyl group has been evaluated: it has been found that the steric properties of the sulfonyl substituent, more than the electronic ones, influence the regioselectivity of the process. (c) 2006 Elsevier Ltd. All rights reserved.
TROST, B. M.;SCHMUFF, N. R., J. AMER. CHEM. SOC., 1985, 107, N 2, 396-405