3-hydroxy-2-cyclobuten-1-one salts, their production and use

Details 3-hydroxy-2-cyclobuten-1-one salts, their production and use 3-hydroxy-2-cyclobuten-1-one salts, their production and use

C - Chemistry, Metallurgy

07

C

260/583.9

C07C 49/707 (2006.01) C07C 45/43 (2006.01) C07C 45/51 (2006.01) C07C 45/63 (2006.01) C07C 45/64 (2006.01) C07C 45/67 (2006.01) C07C 45/68 (2006.01) C07C 49/573 (2006.01) C07C 211/05 (2006.01) C07C 211/35 (2006.01)

Patent

CA 2036808

Novel 3-hydroxy-2-cyclobuten-1-one salts are disclosed of the general formula: (see formula I) wherein R is an alkali metal atom or an ammonium group of the general formula: (see fig II) wherein R1, R2 and R3 are the same or different in meaning and each is a hydrogen atom, a lower alkyl group or a cycloalkyl group. The salts of formula I are obtained by the reaction of 3-acetoxy-2-cyclobuten-1-one, 1,3-cyclobutanedione or a distillation residue of diketene production containing 3-acetoxy-2-cyclobuten-1-one, with a base. The base can be an amine of the general formula: Image wherein R1, R2 and R3 have the above-mentioned meaning, or an alkali metal alcoholate or an alkali metal hydroxide. The salts of formula I are suitable for the production of squaric acid, by halogenation in a first step and then hydrolysis to form squaric acid in a second step.

Affiliated with

Also associated with

Rating

3-hydroxy-2-cyclobuten-1-one salts, their production and use does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with 3-hydroxy-2-cyclobuten-1-one salts, their production and use, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 3-hydroxy-2-cyclobuten-1-one salts, their production and use will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1728399