156420-57-4

Basic information

• Product Name: C₃HOP[C₆H₂(C(CH₃)3)3]Sn[((CH₃)2CH)3C₆H₂]2(CH₃)2(C₂H₅)
• CAS NO: 156420-57-4
• Molecular Weight: 913.979
• Mol File: 156420-57-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₃HOP[C₆H₂(C(CH₃)3)3]Sn[((CH₃)2CH)3C₆H₂]2(CH₃)2(C₂H₅)(CAS DataBase Reference)
• NIST Chemistry Reference: C₃HOP[C₆H₂(C(CH₃)3)3]Sn[((CH₃)2CH)3C₆H₂]2(CH₃)2(C₂H₅)(156420-57-4)
• EPA Substance Registry System: C₃HOP[C₆H₂(C(CH₃)3)3]Sn[((CH₃)2CH)3C₆H₂]2(CH₃)2(C₂H₅)(156420-57-4)

Safety Data

• Hazardous Substances Data: 156420-57-4(Hazardous Substances Data)

Upstream product

• 52883-78-0 (E)-4-methylhex-4-en-3-one 
• 144080-51-3 (2,4,6-triisopropylphenyl)(supermesityl)stannaphosphene 

Relevant articles and documents

Reactions of stannaphosphenes with α-ethylene aldehydes and ketones

Stannaphosphene Is2Sn=PAr (1) (Is, 2,4,6-triisopropylphenyl; Ar, 2,4,6-tri-tert-butylphenyl) gives with various α-ethylene aldehydes and ketones exclusive [2 + 4] cycloadditions, leading to the corresponding six-membered ring stannaoxaphosphorinenes 2-7. A comparison with the reactivity of germaphosphenes toward the same carbonyl compounds is described. The inversion barrier of phosphorus has been determined for cycloadducts 2 (acrolein) and 3 (methacrolein) (respectively 12.9 and 13.0 kcal/mol) by dynamic proton NMR. The very low values observed are mainly due to the large steric hindrance of groups on phosphorus. The rotational barrier of the Is group cis to the Ar group has been determined in 2 and 3, as well as the rotational barrier of the Ar group in 2-4 (cycloadduct with crotonaldehyde).