Synthesis of Allyl 2-Dialkylamino-4-pentenoates and Their Analogs via Stevens Rearrangement
摘要:
Stevens rearrangement of ammonium salts containing an allyloxycarbonylmethyl group in benzene in the presence of sodium phenoxide yields allyl 2-dialkylamino-4-pentenoates. The rearrangement in the presence of sodium methoxide is accompanied by transesterification to afford methyl 2-dialkylamino-4-pentenoates.
Double-bond migration of allylicalcohols and allylic alkyl ethers was catalytically effected with trans-Mo(N2)2(dpe)2(dpe = Ph2PCH2CH2PPh2). Decarbonylation occurred simultaneously in the case of allyl alcohol. Diallyl ether and allyl phenol ether gave the fragmentation products presumably through initial oxidative addition of the allylO bond. Allylamine was converted to N-propylideneallylamine and
Reaction of tertiary allylic amines with butadiene catalyzed by palladium
作者:Christina Moberg
DOI:10.1016/s0040-4039(01)92355-x
日期:1981.1
Tertiary allylic amines react with butadiene in the presence of palladium(O) with cleavage of the carbon-nitrogen bond of the allylic amine and formation of the unsaturated tertiary amine 4.
叔烯丙基胺在钯(O)存在下与丁二烯反应,裂解烯丙基胺的碳-氮键并形成不饱和叔胺4。
Application de sels de phosphonium amines a la synthese d'amines ethyleniques par reaction de wittig
作者:T.N. de Castro Dantas、J.P. Laval、A. Lattes
DOI:10.1016/s0040-4020(01)91583-2
日期:1983.1
Functionalized phosphoniumsalts in Wittigreactions give ethylenic amines. With aldehydes the nature of the carbon chain and of the substituents on nitrogen have no influence on stereochemistry; ethylenic ketones, give aminopolyenes. Steroids give aminosteroids if a large excess of phosphonium salt is used. Amphiphilic compounds may therefore be prepared and aminoalkyl groups may be introduced to
Methoxy-palladation of allylamines: a facile synthesis of chiral cyclopalladated compounds. X-ray crystal structure of trans-[Pd(CH2CH(OMe)CH(Me)NMe2)(Cl)(Py)]
Abstract The reaction of racemic N,N-dimethylamino-3-but-l-ene (1) and N,N-dimethylamino-l-cyclohex-2-ene (2) with Li2PdCl4 in methanol at 0°C yielded [Pd(CH2CH (OMe)CH(Me)NMe2)(μ-Cl)]2 (4) and [Pd(CHCH(OMe)CHNMe2(CH2)3)(μ-Cl)]2 (6), respectively, as single isomers. On the other hand, only the deallylation product trans-PdCl2[NH-(R,R)-(MeCHPh)2]2 (8) was isolated from the reaction of (R,R)-α,α-dim