- New efficient route to fused aryltetrahydroindolizinones via N-Acyliminium intermediates
-
Straightforward routes to fused tetrahydroindolizinones by two routes A and B, starting either from. 2-formylbenzoic acid and esters or from, β-hydroxy lactones via acyl iminium ions, are described. A plausible mechanism and limitations are given. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009.
- Chiurato, Matteo,Routier, Sylvain,Troin, Yves,Guillaumet, Gerald
-
scheme or table
p. 3011 - 3021
(2009/11/30)
-
- First Rational Synthesis of the Thiothiono Analogue of an Unsymmetrically Substituted Phthalic Anhydride
-
equation presented Treatment of the dithiolane derivative of an α-carboxyethyl benzaldehyde with LDA at -78°C smoothly produced the thiothionophthalic anhydride. The mechanism is proposed to involve loss of ethene and attack of an intermediate dithiocarboxylate onto the ester. Heating the thiothionophthalic anhydride gave the 3,3′-bithiophthalide.
- Morrison, Christopher F.,Burnell, D. Jean
-
p. 3891 - 3892
(2007/10/03)
-
- Diastereoselektive Hydroxyalkylierungen in 1-Stellung von Tetrahydroisochinolinen und Synthese von Aporphin-, Protoberberin- und Phthalid-Alkaloiden
-
Unsubstituted and 6,7-dialkyloxy-N-pivaloyl-tetrahydroisoquinolines 1-3 are converted to 1-bromomagnesium derivatives by sequential treatment with t-BuLi (-75 deg C/THF) and MgBr2*OEt2.Addition of the metalated tetrahydroisoquinolines to aliphatic or arom
- Seebach,Dieter,Huber, Isabelle M. P.,Syfrig, Max A.
-
p. 1357 - 1379
(2007/10/02)
-