Composition containing N-(n-butyl) thiophosphoric triamide adducts and reaction products

A composition comprising:

• an adduct of Formula A or Formula B
• wherein R1 is H, OH, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted heteroalkyl group, a substituted or unsubstituted aryl, or a substituted or unsubstituted heteroaryl;
• n is 0, 1, 2, or 3;
• and
• R2 and R3 are each independently a nucleophile, which is a nitrification inhibitor, a urease inhibitor, or urea;
• free N-(n-butyl)thiophosphoric triamide (NBPT);
• and
• an organic solvent selected from the group consisting of glycols, glycol derivatives, protected glycols, glycol ethers, acetonitrile, DMSO, alkanolamines, alkylsulfones, alkyl amides, monoalcohols, dibasic esters and derivatives thereof, alkylene carbonates, monobasic esters, carboxylic acids, glycol esters, surfactants, and combinations thereof;
• the composition prepared by a process comprising:
• (a) providing a solution of N-(n-butyl)thiophosphoric triamide (NBPT), in the organic solvent, optionally comprising an aqueous solvent;
• (b) adding a nucleophile;
• (c) adding an electrophile;
• (d) reacting the resulting mixture at a temperature ranging from about 25° C. to about 70° C.;
• and
• (e) cooling the mixture to room temperature, wherein the molar ratio of free NBPT:adduct is about 1:1 to about 1:10.

A method for preparing a composition comprising:

• an adduct of Formula A or Formula B:
• wherein R1 is H, OH, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted heteroalkyl group, a substituted or unsubstituted aryl, or a substituted or unsubstituted heteroaryl;
• n is 0, 1, 2, or 3;
• and
• R2 and R3 are each independently a nucleophile, which is a nitrification inhibitor, a urease inhibitor, or urea;
• free N-(n-butyl)thiophosphoric triamide (NBPT);
• and
• an organic solvent selected from the group consisting of glycols, glycol derivatives, protected glycols, glycol ethers, acetonitrile, DMSO, alkanolamines, alkylsulfones, alkyl amides, monoalcohols, dibasic esters and derivatives thereof, alkylene carbonates, monobasic esters, carboxylic acids, glycol esters, surfactants, and combinations thereof;
• the method comprising:
• (a) providing a solution of N-(n-butyl)thiophosphoric triamide (NBPT) in the organic solvent, optionally comprising an aqueous solvent;
• (b) adding a nucleophile;
• (c) adding an electrophile;
• (d) reacting the resulting mixture at a temperature ranging from about 25° C. to about 70° C.;
• and
• (e) cooling the mixture to room temperature, wherein the molar ratio of free NBPT:adduct is about 1:1 to about 1:10.