Four new complexes of the general formula [Ni(SS)(NN)], Where SS is dddt (5, 6-dihydro-1, 4-dithiin-2, 3-dithiolate) or pddt(6, 7-dihydro-SH-1, 4-dithiepin-2, 3
An enantioselective and regioselective total synthesis approach to chiral 1,4-benzodioxane lignans(2R,3R)- and (2S,3S)-2-(4-hydroxy-3-methoxyphenyl)-3-hydroxym