Intermolecular polar [4π++ 2π] cycloadditions of cationic 2-azabutadienes from thiomethylamines: a new and efficient method for the regio- and diastereo-selective synthesis of 1,2,3,4-tetrahydroquinolines
Reaction of N-(Dialkylaminomethyl) amides and N-(α-Dialkylaminobenzyl) amides with Sulfides and Cyanide
作者:HIDEO SAKAI、KEIICHI ITO、MINORU SEKIYA
DOI:10.1248/cpb.21.2257
日期:——
The substitution of the dialkylamine residue of N-(dialkylaminomethyl) amides with nucleophiles leading to the formation of the amidomethyl compounds, reported in several papers by Hellmann, et al. has been shown not to occur with sulfides and cyanide under the condition of heating in methanol preferably in the presence of sodium hydroxide, whereas the substitution of the amide residue is chiefly effected. By similar manners the substitution reactions of N-(α-dialkylaminobenzyl) amides with sulfides and cyanide have been also realized.
Nucleophilic substitution reactions of anilino thioethers with anilines in methanol
作者:Huck Keun Oh、Jin Hee Yang、Hai Whang Lee、Ikchoon Lee
DOI:10.1039/a909541a
日期:——
state with high ρX (βX) and ρZ (βZ) values. However, cross interactions between the nucleophile and leaving group are extensive with large negative constants (ρXZ=−1.7, βXZ=−0.27), which are suggestive of an SN2 reaction with frontside attack. The inverse secondary kineticisotopeeffectsinvolving deuterated anilines (kH/kD=0.84–0.88) along with low ΔH≠ (4.2–5.2 kcal mol−1) and ΔS≠ (−46–−59 e.u.) values
已经对苯胺硫醚,N-甲基-N -[[(Z-苯硫基)甲基] -Y-苯胺,YC 6 H 4 N(CH 3)CH 2 SC 6 H的苯胺的溶剂分解和氨解反应进行了动力学研究。 4 Z,I在45.0°C的甲醇中。与在水中产生大量寿命的亚胺阳离子相反,溶剂分解是通过在甲醇中的直接置换(S N 2)机理进行的。在氨解,无论键的形成和裂解的井下,在后期小号方式Ñ具有高2过渡状态ρ X(β X)和ρ Ž(β Ž)值。然而,亲核试剂和离去基团之间的交叉相互作用广泛与大的负常数(ρ XZ = -1.7,β XZ = -0.27),这是暗示一个S的Ñ与前侧攻击2反应。氘代苯胺(k H / k D = 0.84-0.88)以及较低的ΔH ≠ (4.2-5.2 kcal mol -1)和ΔS ≠(-46--59 eu)值的逆次要动力学同位素效应是一致的提出的机制。
The Aminomethylation of Selenophenol
作者:Ithamar E. Pollak、Gerald F. Grillot
DOI:10.1021/jo01349a011
日期:1966.11
Condensation of Thiophenols and Formaldehyde with Some Aromatic Amines
作者:GERALD F. GRILLOT、ROBERT E. SCHAFFRATH
DOI:10.1021/jo01090a001
日期:1959.8
Germon, C.; Alexakis, A.; Normant, J. F., Bulletin de la Societe Chimique de France, 1984, vol. 2, # 9-10, p. 377 - 389