ZfN: Search Results

1	Author	Y. S., W. F.	Requires cookie*
	Title	Untersuchung der Konformation bicyclischer Imidderivate mit Hilfe der 270 MHz NMR- Spektroskopie Study of the Conformation of Bicyclic Imide Derivatives with 270 MHz NMR Spectroscopy
	Abstract	The stable conformation of l-azabicyclo[3,3,0]octane-2,8-dione (1), 2,8-biscyano-methylen-l-azabicyclo[3,3,0]octane (2) and 2-oxo-8-ethoxycarbonylmethylen-l-azabi-cyclo[3,3,0]octane (3) was obtained by analysis of the 270 MHz PMR spectra. The results are correlated with force field calculations.
	Reference	(Z. Naturforsch. 30b, 591—599 [1975]; eingegangen am 4. Oktober 1974)
	Published	1975
	Keywords	Imides, Proton Magnetic Resonance, Karplus Eq, Force Field
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/30/ZNB-1975-30b-0591.pdf
	Identifier	ZNB-1975-30b-0591
	Volume	30

2	Author	H.E J	Requires cookie*
	Title	Reduction of Indolic Imides with Sodium Borohydride ATTA-UR-RAHMAN and NIGHAT WAHEED
	Abstract	Reduction The reduction of imides with sodium boro-hydride affords ring cleaved products instead of the corresponding carbinol lactams sug-gested previously.
	Reference	(Z. Naturforsch. 31b, 287—288 [1976]; received September 23 1975)
	Published	1976
	Keywords	Imides, Cyclization, Indole Alkaloids, Sodium Borohydride
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/31/ZNB-1976-31b-0287_n.pdf
	Identifier	ZNB-1976-31b-0287_n
	Volume	31

3	Author	W. N. Speckamp, J. Dijkink, P. Pasman, J. C. Hubert	Requires cookie*
	Title	Indole [3,2 gjindolizidines via Sodium Borohydride Reduction of Indolic Imides
	Abstract	Acid-controlled sodium borohydride reduc-tion of imides followed by cyclisation of the carbinol lactams formed affords the title compounds in good yields.
	Reference	(Z. Naturforsch. 33b, 127—128 [1978]; received September 12 1977)
	Published	1978
	Keywords	Reduction, Imides, Cyclisation, Carbinol Lactam, Indole Alkaloids
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0127_n.pdf
	Identifier	ZNB-1978-33b-0127_n
	Volume	33

4	Author	Yüniu Bai, M. Athias Noltemeyer, H. Erbert, W. Roesky	Requires cookie*
	Title	Synthese und Strukturen von Monoalkylamiden und -imiden des Titans Synthesis and Structures o f M onoalkylam ides and -imides of Titanium
	Abstract	A new method for the preparation o f m onoalkylam ides o f com position Cp'TiCl2N H R is reported. M e3SnN H R (R = /Bu l a , CH/Pr-, lb) reacts with Cp'TiCl3 with elimination o f M e3SnCl to yield Cp'TiCLNHR (2) (2a: Cp' = C 5H 5, R = /Bu, 2b: Cp' = M e3SiC5H 4, R = t Bu, 2c: Cp' = (M e3Si)?C 5H 3, R = /Bu, 2d: Cp' = M e4C5H, R = /Bu, 2e: Cp' = M e5C5, R = t Bu, 2f: Cp' = C5H 5, R = CH/Pr2, 2g: Cp' = M e3SiC5H 4, R = CH/Pr2, 2h: Cp' = (M e3Si)2C5H3, R = CH/Pr2, 2i: Cp' = M e4C5H , R = CH/Pr2, 2j: Cp' = M e5C5, R = CH/Pr2). Compounds 2 a -2 j are stable and eliminate HC1 only in the presence o f a strong base to form (C5H 5T iC lN /B u)2 (3a) or (M e3SiC5H4T iC lN /B u)2 (3b) from 2 a and 2b, respectively. In 3a the chlorine atom s are substituted by N H /B u groups in boiling T H F by means o f L iN H /Bu to give (C5H 5T iN H /B uN /B u)2 (4). The reactions o f 2 e and 2b with L iN (SiM e3)2-Et20 in the presence o f pyridine yield M e5C5T iC lN /B u • Py (5 a) (Py = pyridine) and M e3SiC5H4T iC lN /B u P y (5 b), respectively. Com pounds 2 e and 5 a have been characterized by X-ray crystal structural analysis.
	Reference	Z. Naturforsch. 46b, 1357 (1991); eingegangen am 22. März 1991
	Published	1991
	Keywords	X -Ray, Synthesis, Titanium, Amides, Imides
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/46/ZNB-1991-46b-1357.pdf
	Identifier	ZNB-1991-46b-1357
	Volume	46