76287-37-1

Basic information

• Product Name: Phosphine, bis(3,3-dimethyl-1-butynyl)phenyl-
• CAS NO: 76287-37-1
• Molecular Formula: C18H23P
• Molecular Weight: 270.354
• Mol File: 76287-37-1.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Phosphine, bis(3,3-dimethyl-1-butynyl)phenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphine, bis(3,3-dimethyl-1-butynyl)phenyl-(76287-37-1)
• EPA Substance Registry System: Phosphine, bis(3,3-dimethyl-1-butynyl)phenyl-(76287-37-1)

Safety Data

• Hazardous Substances Data: 76287-37-1(Hazardous Substances Data)

Upstream product

• 917-92-0 3,3-Dimethylbut-1-yne 
• 644-97-3 Dichlorophenylphosphine 
• 37892-71-0 tert-butyllithium 

Downstream Products

• 167384-69-2 CuOTf*PhP(C_.tplbond.CC(CH₃)3)2 
• 1391722-02-3 Al₂(C₂H₅)4(P(C₆H₅)(C₂C(CH₃)3)CCHC(CH₃)3)2 
• 167384-65-8 CuI*2PhP(C_.tplbond.CC(CH₃)3)2 
• 167384-62-5 CuCl*PhP(C_.tplbond.CC(CH₃)3)2 
• 167384-63-6 CuCl*3PhP(C_.tplbond.CC(CH₃)3)2 
• 76287-35-9 4-Benzyl-2,6-di-tert-butyl-4-phenyl-4H-[1,4]oxaphosphinin-4-ium; bromide 
• 76287-28-0 Bis-(3,3-dimethyl-but-1-ynyl)-methyl-phenyl-phosphonium; iodide 
• 76287-31-5 Benzyl-bis-(3,3-dimethyl-but-1-ynyl)-phenyl-phosphonium; bromide 

Relevant articles and documents

New Reactivity Patterns in 3H-Phosphaallene Chemistry [Aryl-P=C=C(H)-tBu]: Hydroboration of the C=C Bond, Deprotonation and Trimerisation

3H-Phosphaallenes, R?P=C=C(H)C?R’ (3), are accessible in a multigram scale on a new and facile route and show a fascinating chemical reactivity. BH3(SMe2) and 3 a (R=Mes*, R’=tBu) afforded by hydroboration of the C=C bonds of two phosphaallene molecules an unprecedented borane (7) with the B atom bound to two P=C double bonds. This compound represents a new FLP based on a B and two P atoms. The increased Lewis acidity of the B atom led to a different reaction course upon treatment of 3 a with H2B-C6F5(SMe2). Hydroboration of a C=C bond of a first phosphaallene is followed in a typical FLP reaction by the coordination of a second phosphaallene molecule via B?C and P?B bond formation to yield a BP2C2 heterocycle (8). Its B?P bond is short and the B-bound P atom has a planar surrounding. Treatment of 3 a with tBuLi resulted in deprotonation of the β-C atom of the phosphaallene (9). The Li atom is bound to the P atom as demonstrated by crystal structure determination, quantum chemical calculations and reactions with HCl, Cl-SiMe3 or Cl-PtBu2. The thermally unstable phosphaallene Ph?P=C=C(H)-tBu gave a unique trimeric secondary product by P?P, P?C and C?C bond formation. It contains a P2C4 heterocycle and was isolated as a W(CO)4 complex with two P atoms coordinated to W (15).

COMPOSES ORGANIQUES DU PHOSPHORE XIV VOIES D'ACCES AUX SELS DE DIHYDROAZAPHOSPHORINANIUM-1,4 ET DES Pv AZAPHOSPHORINES-1,4 CORRESPONDANTES. SYNTHESES DES HETEROCYCLES SUBSTITUES EN 2 ET 6 PAR DES GROUPEMENTS ter-BUTYLE

The title compounds 11 were obtained from δ-diketo-dipinacolyl phosphonium cations 8 by action of AcONH4/AcOH.These cations were prepared according to three different methods A, B and C.Method B allows a direct synthesis of cation 8 from a pinacolyl phosp