1-(hydroxymethyl)-5,5-dimethylimidazolidine-2,4-dione

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In a further embodiment (the post addition method), an aqueous solution of dimethyloldimethylhydantoin, monomethyloldimethylhydantoin, and dimethylhydantoin is produced by admixing (a) from about 80 to about 90% by weight of an aqueous solution of methylolated dimethylhydantoins having greater than 0.1% by weight of free formaldehyde with (b) about 20 to about 10% by weight of dimethylhydantoin based upon 100% by weight of aqueous solution of methylolated dimethylhydantoins and dimethylhydantoin combined.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: DMDMH is a formaldehyde donor which is the diformylated product of DMH and formaldehyde. MDMH is first formed as an intermediate. MDMH, itself, is a formaldehyde scavenger containing about 19% by weight of bound, but available, formaldehyde. Subsequent reaction of MDMH with formaldehyde yields DMDMH which theoretically contains 31.9% of bound but available, formaldehyde.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: DMDMH is a formaldehyde donor which is the diformylated product of DMH and formaldehyde. MDMH is first formed as an intermediate. MDMH, itself, is a formaldehyde scavenger containing about 19% by weight of bound, but available, formaldehyde. Subsequent reaction of MDMH with formaldehyde yields DMDMH which theoretically contains 31.9% of bound but available, formaldehyde.

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 0.69 ml Thionyl chloride was added to a solution of 500 mg 1-Hydroxymethyl-5,5-dimethyl-imidazolidine-2,4-dione in 5 ml DCM at 0° C. for 30 minutes, then left to stir at 25° C. for 16 hours. The mixture was evaporated to dryness and used crude in the synthesis of example 23. left The mixture was evaporated to dryness in the synthesis of example 23

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 0.69 ml Thionyl chloride was added to a solution of 500 mg 1-Hydroxymethyl-5,5-dimethyl-imidazolidine-2,4-dione in 5 ml DCM at 0° C. for 30 minutes, then left to stir at 25° C. for 16 hours. The mixture was evaporated to dryness and used crude in the synthesis of example 23. left The mixture was evaporated to dryness in the synthesis of example 23