Photoasymmetric synthesis of [Co(edta)](-) from Co(II) salt and L(4)edta (L=H+ or Na+), using a chiral Cu(I) complex

摘要

Co(edta)](-) was photochemically synthesized from CoX2 (X=NO3- or OAc-) and L(4)edta (L=H+ or Na+) with a chiral Cu(I) complex, under irradiation of near UV light (350 - 370 nm), Lambda-[Co(edta)](-) was produced in excess (7% e.e.) from Co(OAc)(2) and H(4)edta, while Delta-[Co(edta)](-) was produced in excess (7%e.e.) from Co(OAc)(2) and Na(4)edta. When CO(NO3)(2) was used, Lambda-[Co(edta)](-) was yielded from either H(4)edta or Na(4)edta. [References: 9