104213-58-3

Upstream product

• 18270-42-3 lithium tert-butyl-trimethylsilylamide 
• 1070-89-9 sodium hexamethyldisilazane 
• 91443-42-4 <(2,4,6-tri-tert-butylphenyl)(trimethylsilyl)phosphino>lithium 
• 79855-29-1 dichloro-(2,2,6,6,-tetramethylpiperidino)borane 
• 91425-17-1 (2,4,6-tri-tert-butylphenyl)(trimethylsilyl)phosphane 
• 83115-12-2 (2,4,6-tri-tert-butylphenyl)phosphine 

Downstream Products

• 104213-57-2 {((CH₃)4C₅H₆N)BP(C₆H₂(C(CH₃)3)3)} 
• 96097-12-0 2,4,6-tris(2,2,6,6-tetramethylpiperidino)boroxine 
• 106345-64-6 Fluorenylidene(2,4,6-tri-tert-butylphenyl)phosphine 
• 99475-27-1 2,4-bis(2,2,6,6-tetramethylpiperidino)-1,3,2,4-dioxadiboretane 
• 89218-30-4 tris(tertiobutyl)phenyl-1 dimethylamino-2 phosphapropene-1 
• 123542-45-0 (2,4,6-tert-butylphenyl)(2,2-dimethylphosphaethene) 
• 111888-04-1 2,2-diphenyl-1-(2,4,6-tri-tert-butylphenyl)-1-phosphaethene 

Relevant academic research and scientific papers

Phosphaborenes: Accessible Reagents for the Synthesis of C?C/P?B Isosteres

Formal exchange of C=C units with isoelectronic B=N or B=P units can provide access to molecules with unique electronic or chemical properties. Herein, we report the simple solution-phase generation of highly reactive phosphaborenes, RP=BR, and demonstrate their use for the introduction of P=B units into organic systems. Ring opening of a P?B-containing cyclobutene isostere provided access to unique 1,4-boraphosphabutadiene systems with conjugated main-group multiple bonds.

The Phospha-Bora-Wittig Reaction

We report the phospha-bora-Wittig reaction for the direct preparation of phosphaalkenes from aldehydes, ketones, esters, or amides. The transient phosphaborene Mes*P═B-NR2 reacts with carbonyl compounds to form 1,2,3-phosphaboraoxetanes, analogues of oxap

Synthesis and Structures of New 1,3,2,4-Diphosphadiboretanes

Three methods have been devised to prepare new diphosphadiboretanes: a) Base-induced hydrogen halide elimination from (amino)phosphinoboron halides precursors, b) tris(trimethylsilyl)phosphane elimination from R2N-B2 intermediates prepared in situ from combination of R2N-B(Cl)-P(SiMe3)2 and LiP(SiMe3)2, and organylphosphane elimination from aminobis(organylphosphino)boranes R2N-B(PHR')2.The molecular structures of three new 1,3,2,4-diphosphadiboretanes (3, 4a, 4c) were determined by X-ray diffractometry.These are characterized by a planar four-membered B2P2 ring with the phosphorus substituents in trans positions.Their BP bomnds represent single bond distances.Experimental results are compared with MNDO III calculations which reveal a low barrier (ΔE = 5 kcal/mol) for the dimerization of the boraphosphane H2N-B=PMe to the diphospadiboretane (H2N-BPMe)2.

MULTIPLE BONDING INVOLVING PHOSPHORUS; SOME RECENT DEVELOPMENTS

The first boraphosphene, (tmp)B=P(Ar) (tmp = 2,2,6,6-tetramethylpiperidino; Ar = 2,4,6-t-Bu3C6H2) has been prepared by thermolysis of the corresponding dimer, 2 at 250 deg C.Mass spectral data are reported for (tmp)B=P(Ar) and ab initio MO calculations have been performed on the parent boraphosphene, HB=PH.The nature of the phosphorus-phosphorus bond in ArP=PAr has been investigated by solid state 31P NMR.The reactivity of the phosphavinylidene, 1-P=C(SiMe3)2(η-C5H5)> has been explored.The reaction of ArPCl2 with Na2 affords , the first example of a group 5 phosphinidene complex.