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HomeProduct name listN-(Methoxymethyl)-N-(trimethylsilylmethyl)benzylamine

N-(Methoxymethyl)-N-(trimethylsilylmethyl)benzylamine

  • CAS NO.:93102-05-7
  • Empirical Formula: C13H23NOSi
  • Molecular Weight: 237.41
  • MDL number: MFCD00674005
  • EINECS: 630-326-4
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-08-08 14:19:10
N-(Methoxymethyl)-N-(trimethylsilylmethyl)benzylamine Structural

What is N-(Methoxymethyl)-N-(trimethylsilylmethyl)benzylamine?

Chemical properties

N-(Methoxymethyl)-N-(trimethylsilylmethyl)benzylamine is clear colorless to light yellow liquid

Physical properties

bp 77–80°C/0.5 mmHg.

The Uses of N-(Methoxymethyl)-N-(trimethylsilylmethyl)benzylamine

N-(Methoxymethyl)-N-(trimethylsilylmethyl)benzylamine is useful reagent in synthesizing N-benzyl substituted pyrrolidines by [3+2] cycloaddition to α,ßunsaturated esters.

The Uses of N-(Methoxymethyl)-N-(trimethylsilylmethyl)benzylamine

N-Benzyl-N-(methoxymethyl)- N-trimethylsilylmethylamine (1) is a valuable reagent for in situ generation of the N-benzyl azomethine ylide (2). It is generally preferred over alternative silylmethylamine precursors6–8 because of ease of handling and use. The ylide (2) is most conveniently generated from (1) using a catalytic amount of trifluoroacetic acid as described by Achiwa.Alternative catalysts include LiF, TBAF,Me3SiOTf–CsF, or Me3SiI–CsF. Mechanistic studies provide evidence that the reactive intermediate generated from (1) with either CF3CO2H or F? is a 1,3-dipolar species. Reaction of (2) with alkenes provides an efficient convergent route to pyrrolidine derivatives. Alkynes afford 3-pyrrolines which can be converted into pyrroles.The ylide (2) reacts most readily with electron deficient alkenes and alkynes since this pairing results in a narrow dipole HOMO–dipolarophile LUMO energy gap.Examples of suitable dipolarophiles include unsaturated esters, ketones, imides,nitriles,and sulfones. Cycloaddition occurs with complete cis stereospecificity (eq 1) which is consistent with a concerted mechanism. Dipolarophiles containing an endocyclic double bond afford fused bicyclic pyrrolidines, whereas substrates with an exocyclic double bond provide access to spirocyclic systems.	N-(Methoxymethyl)-N-(trimethylsilylmethyl)benzylamine

The Uses of N-(Methoxymethyl)-N-(trimethylsilylmethyl)benzylamine

N-Methoxymethyl-N-(trimethylsilylmethyl)benzylamine forms azomethine ylides which readily undergo [3+2] cycloaddition to α,?-unsaturated esters affording N-benzyl substituted pyrrolidines in good yields. It reacts with asymmetric 1,3-dipolar cycloadditions in the practical, large-scale synthesis of chiral pyrrolidines. It is used in the the synthesis of 3-carboxy-1-azabicyclo[2.2.1]heptane derivatives, an important class of physiologically active compounds.

What are the applications of Application

N-(Methoxymethyl)-N-(trimethylsilylmethyl)benzylamine is Reacted in asymmetric 1,3-dipolar cycloadditions in the practical, large-scale synthesis of chiral pyrrolidines

Preparation

most conveniently prepared by treatment of benzylamine with chloromethyltrimethylsilane followed by formaldehyde and methanol.Access to higher ether homologs is achieved by replacing methanol with the appropriate alcohol. An alternate procedure involves alkylation of lithium N-benzyltrimethylsilymethylamide with methoxymethyl chloride.

Properties of N-(Methoxymethyl)-N-(trimethylsilylmethyl)benzylamine

Boiling point: 76 °C0.3 mm Hg(lit.)
Density  0.928 g/mL at 25 °C(lit.)
refractive index  n20/D 1.492(lit.)
Flash point: 151 °F
storage temp.  Keep in dark place,Sealed in dry,Room Temperature
solubility  Soluble in chloroform, ethyl acetate.
form  Liquid
pka 7.29±0.50(Predicted)
Specific Gravity 0.928
color  Clear colorless to light yellow
Sensitive  Moisture & Light Sensitive
Hydrolytic Sensitivity 2: reacts with aqueous acid
BRN  4311216
CAS DataBase Reference 93102-05-7(CAS DataBase Reference)

Safety information for N-(Methoxymethyl)-N-(trimethylsilylmethyl)benzylamine

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P271:Use only outdoors or in a well-ventilated area.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for N-(Methoxymethyl)-N-(trimethylsilylmethyl)benzylamine

InChIKey RPZAAFUKDPKTKP-UHFFFAOYSA-N

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