Metallorganische Innerkomplexe; I. Aluminiumorganische Innerkomplexe

Abstract

351.4) B r . C71.77 H7.17 Gef. C71.49 H7.35 b) Man hydriert 0.23~ (0.5mMol) Nitrobronistrychnin wie bei a), wobei in 2l/, Stdn. etwa 60 ccm Wasserstoff aufgenommen werden. Die isolierte Base (0.14 g) stimmt in allen Eigenschaften mit dem nach a) darge9tellten Pr&parat uberein. c) Die Hydrierung ron 0.21 g (0.5 mMol) Nitrochlorstrychnin unter den gleichen Redingungen liefert 0.13 g der unter a) beschriebenen Rase. X -Acetyl-Derivot: Die Acetylierung der Base erfolgt wie heim 3-Amino-stryohnin. Das P e r c h l o r a t der Acetyl-Verhindung bildet derbe Kristalle, die sich nach dem Um-16Ren aus W a w r ab 280° vorfhrben und gegen 2900 zersetzen. Zur Andyse wird bci 100°/15 Tom getrocknet. C,H,03N3-HCI0, (493.9) Ber. N 8.51 Gef. N 8.5Q s, ,,Alkylguppen" hier ganz allgemein fur (C-radikalische) Kohlenwaawrstoffreste (auch in sich substituierte). O) Diea zeigen die elektrischen Momenta derartiger Verbindungen; vergl. G. L. Lewis, P. F. Oesper u. C. P. Smyth, J.Amer. chem.

Aluminum alkyls with intramolecularly coordinated oxygen

“…17 The reaction of Me 2 AlCl and i Bu 2 AlCl with 2,6-bis(methoxymethyl)phenyllithium or 2,6-bis(tert-butoxymethyl)phenyllithium, respectively, in diethyl ether at −78-20…”

Syntheses of Chiral, Intramolecularly Coordinated Aluminum Bromides

“…[6] In order to ascertain whether a cleavage of the 1955. [1] The authors synthesized the two intramolecularly AlϪN donor bonds is involved in this process, we synthecoordinated alanes [EtO(CH 2 ) 4 ]AlEt 2 and [Et 2 N(CH 2 ) 3 ]-sized some novel aluminum compounds intramolecularly AlEt 2 , which contain five-and six-membered rings, respeccoordinated through a chiral, one-armed phenyl ligand, natively. According to cryoscopic measurements, these airmely 2-[1-(S)-(dimethylamino)ethyl]phenyl.…”

“…If we zene solution. [1] Since this investigation, many more intraassume a fast envelope inversion of the five-membered ring molecularly coordinated organometallic compounds of the in compound A, this species exhibits C s point-group symGroup 13 elements have been synthesized. [2] One of the metry, i.e.…”

Three types of reactions with intramolecular five-membered ring compounds in organic synthesis

“…In 1955, Bähr and Müller [1][2][3] first published a report regarding organometallic intramolecular-coordination compounds which tend to form five-or six-membered ring compounds. They could not verify their intramolecular coordination states with analytical instruments such as IR and NMR spectroscopies at that time.…”