34697-70-6

Basic information

• Product Name: dimethyl-(2-methyl-2-propenyl)phenylsilane
• Synonyms: dimethyl-(2-methyl-2-propenyl)phenylsilane
• CAS NO: 34697-70-6
• Molecular Weight: 190.36
• Mol File: 34697-70-6.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: dimethyl-(2-methyl-2-propenyl)phenylsilane(CAS DataBase Reference)
• NIST Chemistry Reference: dimethyl-(2-methyl-2-propenyl)phenylsilane(34697-70-6)
• EPA Substance Registry System: dimethyl-(2-methyl-2-propenyl)phenylsilane(34697-70-6)

Safety Data

• Hazardous Substances Data: 34697-70-6(Hazardous Substances Data)

Upstream product

• 1458-98-6 2-methyl-3-bromo-1-propene 
• 91076-17-4 dimethyl(phenyl)(prop-1-en-2-yl)silane 
• 463-49-0 1,2-propanediene 
• 3839-31-4 dimethyl(phenyl)silyllithium 
• 74-88-4 methyl iodide 
• 119841-37-1 2-iodo-3-dimethyl(phenyl)silylpropene 

Downstream Products

• 56-33-7 1,1,3,3-tetramethyl-1,3-diphenyldisiloxane 
• 1040396-40-4 C₂₄H₃₂N₂O₃Si 
• 83039-89-8 methyl 3-methyl-2-(dimethylphenylsilyl)-3-butenoate 
• 474333-79-4 (R)-3-((S)-3-Methyl-1-phenyl-but-3-enyloxy)-5-((2R,4S)-2-phenyl-[1,3]dioxan-4-yl)-pentan-1-ol 
• 474333-73-8 (S)-3-((S)-3-Methyl-1-phenyl-but-3-enyloxy)-4-((2R,4R)-2-phenyl-[1,3]dioxan-4-yl)-butan-1-ol 
• 72258-23-2 (2R,4S)-4-Methyl-2-phenyl-1,3-dioxan 
• 79464-76-9 (2S,4R)-4-methyl-2-phenyl-1,3-dioxane 
• 212615-52-6 (2R,4S)-2-phenyl-4-(2-phenylethyl)-1,3-dioxane 

Relevant articles and documents

Silicon Grignard Reagents as Nucleophiles in Transition-Metal-Catalyzed Allylic Substitution

A broad range of transition-metal catalysts is shown to promote allylic substitution reactions of allylic electrophiles with silicon Grignard reagents. The procedure was further elaborated for CuI as catalyst. The regioselectively is independent of the leaving group for primary allylic precursors, favoring α over γ. The stereochemical course of this allylic transposition was probed with a cyclic system, and anti -dia-stereoselectivity was obtained.

New findings on the regiochemistry of the silylcupration of allene

Allene 1 reacts at -40*C with the phenyldimethylsilylcopper reagent 6, with the opposite regioselectivity to that shown by the corresponding silylcuprate reagent 2, to give allylsilanes 7 and 10-15 rather than vinylsilanes.

SILYL-CUPRATION OF ALLENE. A NEW ROUTE TO SILYLATED SYNTHONS

Silyl-cupration of allene followed by treatment with iodine anomalously gives the vinyl iodide 4, a versatile synthetic intermediate.