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By 1,4-bridging of p-tert-butylcalix [6] arene with 2,6-bis (bromomethyl)-4-methyl- anisole, a new type of bis-calix [5] arene analogue was obtained in high yield..
By 1,4-bridging of p-tert-butylcalix [6] arene with 2,6-bis (bromomethyl) -4-methyl-anisole, a new type of bis-calix [5] arene analogue was obtained in high yield. .