The phosphorylated calix[4]arenoid para- and meta-substituted cyclophane tetramers, which were synthesised in good yields starting from parent cyclic hydrocarbons, show a 'saddle-shaped' rigid conformation in solution, and the methylenephosphonic acid dialkyl ester groups are in a strategic position far complexation with neutral guests.
The phosphorylated calix[4]arenoid para- and meta-substituted cyclophane tetramers, which were synthesised in good yields starting from parent cyclic hydrocarbons, show a 'saddle-shaped' rigid conformation in solution, and the methylenephosphonic acid dialkyl ester groups are in a strategic position far complexation with neutral guests.
Synthesis and characterization of conformationally flexible phosphonated cyclophanes
CONSIGLIO, GIUSEPPE;FAILLA, Salvatore;
1999-01-01
Abstract
The phosphorylated calix[4]arenoid para- and meta-substituted cyclophane tetramers, which were synthesised in good yields starting from parent cyclic hydrocarbons, show a 'saddle-shaped' rigid conformation in solution, and the methylenephosphonic acid dialkyl ester groups are in a strategic position far complexation with neutral guests.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
