T. Nabeshima et al., PREPARATION OF NOVEL POLYETHERS CONTAINING BISBIPYRIDINES AND CHIRAL AUXILIARIES, AND THE COMPLEXATION WITH CU(I), Synlett, (3), 1998, pp. 265-266
Branched polyethers containing two bisbipyridine derivatives and chira
l auxiliaries for precursors of chiral pseudocrown ethers were synthes
ized, and the complexation with Cu(I) was studied.