612851-91-9

Upstream product

• 100281-23-0 [(dibromomethylene)(2,4,6-tri-tertbutylphenyl)phosphine] 
• 74-88-4 methyl iodide 
• 478544-24-0 C₄₂H₆₇P₂^(1-)*Li⁽¹⁺⁾ 
• 1252007-16-1 1-t-butyl-3-(4-methoxybenzyl)-2,4-bis(2,4,6-tri-t-butylphenyl)-1,3-diphosphacyclobutane-2,4-diyl 
• 31039-85-7 1-(2',4',6'-tri-tert-butylphenyl)acetylene 
• 594-19-4 tert.-butyl lithium 
• 100938-86-1 2-(2,4,6-tri-tert-butylphenyl)phosphaacetylene 
• 1252007-15-0 1-t-butyl-3-(4-iodobenzyl)-2,4-bis(2,4,6-tri-t-butylphenyl)-1,3-diphosphacyclobutane-2,4-diyl 
• 1252007-14-9 1-(4-bromobenzyl)-3-t-butyl-2,4-bis(2,4,6-tri-t-butylphenyl)-1,3-diphosphacyclobutane-2,4-diyl 
• 1252007-13-8 1-t-butyl-3-propargyl-2,4-bis(2,4,6-tri-t-butylphenyl)-1,3-diphosphacyclobutane-2,4-diyl 
• 1252685-49-6 1-t-butyl-3-cinnamyl-2,4-bis(2,4,6-tri-t-butylphenyl)-1,3-diphosphacyclobutane-2,4-diyl 
• 1252007-12-7 1-t-butyl-3-(3-methylbut-2-enyl)-2,4-bis(2,4,6-tri-t-butylphenyl)-1,3-diphosphacyclobutane-2,4-diyl 
• 1252007-11-6 1-t-butyl-3-(methoxycarbonylmethyl)-2,4-bis(2,4,6-tri-t-tbutylphenyl)-1,3-diphosphacyclobutane-2,4-diyl 
• 1252007-18-3 1-t-butyl-3-(3-thienyl)methyl-2,4-bis(2,4,6-tri-t-butylphenyl)-1,3-diphosphacyclobutane-2,4-diyl 

Downstream Products

• 917472-54-9 C₄₃H₇₀P₂⁽¹⁺⁾ 
• 1182842-83-6 C₄₃H₇₂P₂ 
• 917472-55-0 [C₂P₂(CH₃)(t-Bu)(2,4,6-t-Bu₃C₆H₂)2]SbCl₆ 

Relevant academic research and scientific papers

Modeling the direct activation of dihydrogen by a P2C 2-Cyclic biradical: Formation of a cyclic bis(P-H γ5-phosphorane)

1-tert-Butyl-3-methyl-2,4-bis(2,4,6-tri-tert-butylphenyl)-1, 3-diphosphacyclobutane-2,4-diyl reacts with hydride followed by proton quench to give a 2,4-diphospha-1,3-cyclobutadiene with diylidic structure. Copyright Taylor & Francis Group, LLC.

Diverse reactions of sterically-protected 1,3-diphosphacyclobutane-2,4- diyls with hydride

Hydride-induced elimination of resonance stabilized substituents from a phosphorus center of 1,3-diphosphacyclobutane-2,4-diyls leads to the formation of versatile cyclic phosphaallyl anions that are useful for the construction of various electrophile-modified biradical species.

Studies on stable 1,3-diphosphacyclobutane-2,4-diyls

Various kinds of stable 1,3-diphosphacyclobutane-2,4-diyls, sterically protected by bulky Mes* (2,4,6-tri-t-butylphenyl) groups, were prepared from Mes*-phosphaethyne. The structures and physical and chemical characters were studied. They are discussed in

Synthesis of a 1,3-diphosphacyclobutane-2,4-diyl from Mes*C≡P

A very stable biradical, 2, was prepared from 1 (see picture). The deep-blue/violet biradical was stable in the air for several minutes. The sp2-hybridized carbon radical centers of 2 were confirmed by X-ray crystallography and its reversible o