The sodium acetate-buffered peracetic acid oxidation of various 1-methoxybicyclo[2.2.2]oct-5-enones (4a-f), and (14), prepared by hydrolysis of the adducts (3) [(13)] derived from dihydroanisole derivatives (2) [(12)] and 2-chloroacrylonitrile leads to 4-substituted cyclohex-2-en-1-one 4-acetic acid derivatives (7) [(15)].
Palladium-Catalyzed Highly Diastereoselective Cyclic Carbopalladation−Carbonylative Esterification Tandem Reaction of Iododienes and Iodoarylalkenes
作者:Christophe Copéret、Ei-ichi Negishi
DOI:10.1021/ol9900663
日期:1999.7.1
[GRAPHICS]Pd-catalyzed reaction of iododienes and iodoarylalkenes represented by 1, 8, and 10 under 1 atm of CO and a small amount of O-2 in the presence of a base, e.g., NEt3 as well as MeOH and H2O in DMF can undergo a highly diastereoselective cyclic carbopalladation-carbonylative esterification tandem process (Type II C-Pd process) to give in high yields the corresponding ester-containing cyclization products, e.g., 2, 9, and 11, in as high as 98% diastereoselectivity.
PEARSON A. J., J. CHEM. SOC. PERKIN TRANS., 1979, PART 1, NO 5, 1255-1260
作者:PEARSON A. J.
DOI:——
日期:——
HOLMES, ANDREW B.;MADGE, NIGEL C., TETRAHEDRON, 45,(1989) N, C. 789-802
作者:HOLMES, ANDREW B.、MADGE, NIGEL C.
DOI:——
日期:——
PERSON A. J., TETRAHEDRON, 1980, 21, NO 40, 3929-3932