A- -ethylamine

The Step 1 product (0.25 mmol) was added to the well of a reaction block containing 5 ml THF and then A-benzyl-A-ethylamine (0.5 mmol) was added neat. The reaction block was shaken 24 hours then filtered, concentrated, and purified using reverse-phase HPLC with water/acetonitrile (0.1% TFA) and the product isolated as a trifluoroacetate salt. 

In the course of investigations involving the reaction of lithium triethylhydroborate with conjugated nitroalkenes (61),A -ethylamines (62) were consistently observed as by-products (equation 34). The intermediacy of nitroso compounds has been confirmed in this reaction which provides a useful method for the preparation of A -ethylated amine derivatives. These A -alkylated products are not produced when sterically demanding reagents, such as potassium tri-s-butylborohydride, are used. Apparently, the competition between reduction and alkylation of the nitroso group is sensitive to steric effects. 

The A-ethyloxazolidinone 38 (Scheme 13.24) is obtained from L-serine by treating (5 )-serine methyl ester hydrochloride with EtsN, acetaldehyde and NaBH4 to give A-ethylamine 36. 

State the structural formulae of the product obtained by reacting a ethylamine with dilute hydrochloric acid... 

Figure 3.11 ESI +)-MS(/MS) for gas-phase ion/molecule reactions of protonated urotropine of mfz 141 with (a) ethylamine and (b) aniline.

A Ethylamine undergoes an endothermic gas phase dissociation to produce ethylene (or ethene) and ammonia. 

A A-dimethylamines, A -ethylamines cycloalkanols, cyclic ethers, ethylene ketals, aliphatic aldehydes (McLafferty rearrangement) anhydrides, lactones, carboxyhc acids... 

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