Targeting large phosp(III)azane macrocyles [{P(mu-NR)}(2)(LL)](n) (n >= 2)

The condensation reactions of the dimer [ClP(mu-NR)](2) (7) with organic diacids [LL(H)(2)], possessing linear orientations of their organic groups, result in the formation of phospha(III)zane macrocyles of the type [{P(mu-NR)}(2)(LL)](n) of various sizes. The series of macrocycles [{P(mu-(NBu)-Bu-t)}(2){1,5-(NH)(2)C10H6}](3) (1), [{P(mu-NCy)}(2)(1,5-O2C10H6)](n) [n = 3 (2a); n = 4 (2b)], [{P(mu-(NBu)-Bu-t)}(2){1,4-(NH)(2)C6H4}](4) (3), [{P(mu-(NBu)-Bu-t)}(2)(1,4-O2C6H4)](3) (4), [{P(mu-NCy)}(2)(1,4-O2C6H4)](3) (5) and [{P(mu-(NBu)-Bu-t)}(2){(NH)C6H4OC6H4(NH)}](2) (6) can be related to classical organic frameworks, like calixarenes.