L-Phenyl-ethylamine

What stereoisomers would result from reaction of (z )-laclic acid with (S)-l-phenyl-ethylamine, and what is the relationship between them ... 

They also reported amination of chiral /3-enaminoesters derived from 2-ethoxycarbonyl-cyclohexanone (equation 19) and ethyl 2-butynoate (equation 20) using (/ )-l-phenyl ethylamine and chiral pyrrolidine, respectively. Amination was carried out without a base. 

Die fur (S)-N-Alkyliden-l-phenyl-ethylamin besehriebene Lewis-Saure-katalysierte Addition von Cyan-trimethyl-silan7 (vgl.a.S. 551, 556) gelingt aueh mit den Aldiminen II von 2,3,4,6-Tetra-0-(2,2-dimethyl-propanoyl)-jS-D-galactopyranosylamin(I) als chiraler Matrix8-9 ... 

Very little new data have been obtained in this area since the publication of CHEC-II(1996). In a recent work, the optically active enantiomeric 1,3,4-thiazaphospholes 61 and 62 were synthesized by the reaction of 0-phenyl(chloro-methyl)isothiophosphonate with (R)-(+) and (. 

Auf diese Weise konnen ausgehend von (S)-(—)-l-Phenyl-ethylamin optisch aktive Phosphonsaure-diester hergestellt werden. 

The racemic mixture of the product of Step 3 and (R)-l-phenyl-ethylamine (5.0mmol) were dissolved in 30 ml benzene and the solution refluxed one hour. The resultant reaction mixture was subjected to silica gel column chromatography using hexane/EtOAc, 5 1, and the imines separated. 

The interaction of a (2-halogenoethyl)phosphinate (129) with less than one molar proportion of a chiral base [(—)-quinine, (+)-quinidine, (+)-l-phenyl-ethylamine, and (—)-A -methylephedrine, were each used] results in elimination to give (130) with concurrent enrichment of the less reactive phosphinate enantiomer (129). The leaving group evidently plays a significant role in the... 

Amino-2-phenylethyl alcohol, 2-hydroxy-l-phenyl-ethylamine, 2-phenylethanolamine)... 

Chiral oxazaphosphorinanes, derived from (-)-8-amino menthol are alkylated with good to excellent diastereoselectivities. The regioselectivity in the alkylation is dependent on the base used for protonation.Both enantiomers of the major diastereoisomer of 2-(l-phenyl)ethylamino-4-thioxo-4-phenoxy-l,3,4-thiazaphos-phol-2-ine were obtained in optically pure form by the reaction of 0-phenyl(chloro-methyljisothiophosphonate with (i )-(-l-)- and (5)-(—)-(l-phenyl)ethylamine. Phase-transfer 7V-allylation and A7-propargylation of (bicyclo[1.1.0]butylmethyl)-amines initiate diastereoselective pericyclic cascade reactions that culminate in novel spirocyclic (206) and tricyclic pyrrolidine (207) heterocycles through formal ene or [2 + 2] pathways (Scheme 76). ... 

Spectroscopic and chemical studies of vanadyl OEP have been reported, including m 50-substitution to form nitro-, chloro-, and benzoyloxy-derivatives trans-alkylation occurs when the vanadyl porphyrin is heated on clay and other supports, thus providing a model for the generation of homologous polyalkyl-porphyrins in crude oil and bitumen. m sa-Tetraferrocenyl-porphyrin and its copper complex have been prepared, and spectroscopic and other studies carried out on mixed-valence oxidation products, as models for the study of thermal electron-transfer processes in cytochrome-c. X-Ray crystal structures have been reported for diaquo and perchlorate complexes of Fe" TPP, " dichloro-molybdenum complexes of OEP and TPP, and for the bis-[(R5)-l-phenyl-ethylamine] complex " of Co TPP. Oxomolybdenum complexes TPP-... 

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