Simple carboxylates and halides do not. Typical catalysts are the cobalt carboxylates (known as cobalt soaps). Sodium tends to form water-soluble compounds, such as halides, sulfates, nitrates, carboxylates and carbonates. Good leaving groups for this process include hydroxide, alkoxides, carboxylates, and enolates. LiBHEt deprotonates carboxylic acids, but does not reduce the resulting lithium carboxylates. Here, the two bridging carboxylates are Asp262 and Glu459. Overall, phenacyl PPGs can be used to protect sulfonates, phosphates, carboxylates and carbamates. Common chelating groups include hydroxamates, carboxylates, thiols, and phosphinyls. Typical oxidation catalysts are metal oxides and metal carboxylates. These include carboxylates, phosphates, sulfates, and sulfonates. EDTA usually binds to a metal cation through its two amines and four carboxylates. Deactivating meta-directing substituents include sulfonyl, cyano groups, keto, esters, and carboxylates. "M"-hydroxy compounds do not oxidize to "m"-benzenediols and carboxylates. Amines, carboxylates, alcohols, thiols, and posphines are all competent nucleophiles. Fluorocarbon derivatives with terminal carboxylates are only surfactants when they possess five to nine carbons.