Chemistry of selected cyclic P(III) compounds possessing a P-Cl bond

Abstract

The compounds [CH2(6-t-Bu-4-Me-C6H2O)2]PCl (1), (OCH2CMe2CH2O)-PCl (2), and [ClPN(t-Bu)]2 (3) have been utilized as precursors in the synthesis of (i) new pentacoordinate phosphorus compounds [e.g. CH2(6-t-Bu-4-Me-C6H2O)2 P(NRR′)(O2C6Cl4), CH2(6-t-Bu-4-Me-C6H2O)2 PX[OC(O-i-Pr)N=N(C(O)O-i-Pr)]], (ii) cyclic phosphates and their complexes [e.g. {imidazolium}+{CH2(6-t-Bu-4-Me-C6H2 O)2PO2}-.MeOH], (iii) new cycloaddition products [e.g. {CH2(6-t-Bu-4-Me-C6H2 O)2}P{C(CO2Me)C(CO2Me)C(O)N}], (iv) macrocyclic compounds [e.g. {[(t-BuN)P]2[-OCH2CMe2 CH2O-]}2] and (v) phosphonates [e.g. (OCH2CMe2CH2O)P(O)CH2C(CN)=CHC5 H4FeC5H5]. The synthetic and structural aspects of these new products are discussed.