708-10-1

Upstream product

• 711-78-4 3-methoxy-4-phenylcyclobutenedione 
• 22315-46-4 bromo-phenyl-cyclobutenedione 
• 22118-95-2 3-ethoxy-4-phenyl-3-cyclobutylene-1,2-dione 
• 74176-10-6 2-chloro-2-phenyl-3,3,4,4-tetramethoxycyclobutanone 
• 313-27-9 1-phenyl-3,3,4-trifluoro-4-chloro-1-cyclobutene 
• 313-30-4 4,4-Difluoro-3-phenyl-cyclobuten-⁽²⁾-on-⁽¹⁾ 
• 313-29-1 4-Fluor-4-chlor-1-phenyl-cyclobuten-⁽¹⁾-on-⁽³⁾ 
• 114094-71-2 3-isopropoxy-4-phenylcyclobut-3-ene-1,2-dione 
• 313-28-0 3,3,4,4-Tetrafluor-1-phenyl-cyclobuten-⁽¹⁾ 
• 2912-62-1 α-chlorophenylacetyl chloride 
• 13866-28-9 2,2-dichloro-3-phenylcyclobutanone 
• 854171-65-6 N-(3-phenylcyclobutylidene)isopropylamine 
• 51965-98-1 2,2,4-trichloro-3-phenylcyclobutenone 
• 854171-66-7 N-isopropyl-N-(2,2,4,4-tetrachloro-3-phenylcyclobutylidene)amine 

Downstream Products

• 23803-64-7 3-(4-Phenylazo-anilino)-1-phenyl-cyclobuten-diylium-2,4-diolat 
• 338729-02-5 [Co(3-phenyl-4-hydroxycyclobut-3-ene-1,2-dionato)2(H₂O)4] 
• 338729-04-7 [Zn(3-phenyl-4-hydroxycyclobut-3-ene-1,2-dionato)2(H₂O)4] 
• 344792-67-2 ([Tb(μ-C6H5C4O3)(C6H5C4O3)2(H2O)4]*H2O)(n) 
• 344792-68-3 ([Gd(μ-C6H5C4O3)(C6H5C4O3)2(H2O)4]*H2O)(n) 
• 338729-03-6 [Ni(3-phenyl-4-hydroxycyclobut-3-ene-1,2-dionato)2(H₂O)4] 
• 35486-37-4 3--1-phenyl-cyclobuten-diylium-2,4-diolat 
• 35486-35-2 3--1-phenyl-cyclobuten-diylium-2,4-diolat 

Relevant academic research and scientific papers

Anhydrous proton conductivities of squaric acid derivatives

In this communication, we introduce squaric acid derivatives as anhydrous proton conductors. We report the synthesis, characterization and proton conductivities of four squaric acid derivatives. The anhydrous proton conductivity of one of the derivatives

COMPOSITION CONTAINING OXOCARBON AND USE THEREOF

Provided is a polymer composition containing an oxocarbon and a polymer, further, a polymer composition that the oxocarbon are expressed by formula (1).

New synthesis of semisquaric acid derivatives via chlorinated N-(cyclobutylidene)amines

The synthesis and reactivity of new chlorinated AT-(cyclobutylidene)amines leading to new synthetic pathways toward various substituted cyclobutenediones is described.

Observation of quantum paraelectricity in an intermolecular ionic hydrogen-bonded crystal of a squaric acid derivative

Proton transfer in a hydrated crystal of a squaric acid derivative, p-phenylenebis(squaric acid) (PBSQ), was investigated by means of ac dielectric measurements. The crystal consisted of PBSQ monoanions and protonated water dimer (H5O2+) counter cations, and a highly symmetric, one-dimensional hydrogen-bonded chain was formed through strong OH?O- ionic hydrogen bonding between deprotonated PBSQ moieties. The permittivity of the hydrated crystal was nearly temperature independent (ε′ ～ 9), but the deuterated crystal exhibited a Curie-Weiss type temperature dependence and underwent depression of the permittivity at 28 K, which is the characteristic of an (anti)ferroelectric phase transition. Thus, we conclude that the dielectric response of the hydrated PBSQ crystal originates from proton transfer along the intermolecular hydrogen bond and that the temperature-independent dielectric behavior can be interpreted in terms of quantum paraelectricity.

Oxocarbons and Related Compounds; Part 15. Meerwein-Arylation of Semisquaric Acid and Semisquaric Amides. A General Method for the Preparation of 3-Aryl-4-hydroxy- and 3-Amino-4-aryl-3-cyclobutene-1,2-diones.

Meerwein-arylation of semisquaric acid (1) and semisquaric amides 4 has been found to afford general routes to 3-aryl-4-hydroxy-3-cyclobutene-1,2-diones 3 and 3-amino-4-aryl-3-cyclobutene-1,2-diones 5 respectively.