Stereodynamics of 1,3,5-Trialkyl-1,3,5-triazacyclohexanes: 1H and 13C Dynamic NMR Studies. Solvent Effects. Ab Initio and Molecular Mechanics Calculations
JG Jewett, JJ Breeyear, JH Brown… - Journal of the …, 2000 - ACS Publications
The 1H NMR signal due to the ring methylene protons of 1, 3, 5-trimethyl-1, 3, 5-
triazacyclohexane (TMTAC), 1, 3, 5-triethyl-1, 3, 5-triazacyclohexane (TETAC), 1, 3, 5-tri …
triazacyclohexane (TMTAC), 1, 3, 5-triethyl-1, 3, 5-triazacyclohexane (TETAC), 1, 3, 5-tri …
Non-planar structures of Et 3 N and Pr i 3 N: a contradiction between the X-ray, and NMR and electron diffraction data for Pr i 3 N
R Boese, D Bläser, MY Antipin, V Chaplinski… - Chemical …, 1998 - pubs.rsc.org
The crystal structures of Et3N and Pri3N were determined by X-ray analysis using the in situ
crystallization technique for single crystal growth on the diffractometer; both have a …
crystallization technique for single crystal growth on the diffractometer; both have a …
On the reaction of benzohydroxamic acids with Lawesson's reagent
W Przychodzeń, A Chimiak - … , Sulfur, and Silicon and the Related …, 1998 - Taylor & Francis
Abstract Reaction of Lawesson's Reagent (LR) with two N-alkyl benzohydroxamic acids is
presented. In addition to the desired thiohydroxamic acids 2, the reduction process provides …
presented. In addition to the desired thiohydroxamic acids 2, the reduction process provides …
Stereodynamics of N-Allyl-N-methyl-2-aminopropane. 1H and 13C{H} DNMR Studies. Molecular Mechanics Calculations
JH Brown, CH Bushweller - The Journal of Physical Chemistry A, 1997 - ACS Publications
N-Allyl-N-methyl-2-aminopropane (AMAP) is a relatively simple tertiary amine that has a
chiral center at the pyramidal nitrogen. Racemization occurs by inversion− rotation at …
chiral center at the pyramidal nitrogen. Racemization occurs by inversion− rotation at …
Unusually strong dependence of conformation on solvent
CL Perrin, MA Fabian, IA Rivero - Journal of the American …, 1998 - ACS Publications
Relative partition coefficients between aqueous methanol and pentane of the two
stereoisomers of a series of 4-tert-butylcyclohexylamines were measured by NMR. The cis …
stereoisomers of a series of 4-tert-butylcyclohexylamines were measured by NMR. The cis …
Conformational Studies by Dynamic NMR. 88.1 Stereomutation Processes in the Diastereoisomers of a Representative Amino Alcohol and Related Amide Precursors
G Bartoli, S Grilli, L Lunazzi, M Massaccesi… - The Journal of …, 2002 - ACS Publications
The barriers for three internal motions (ie, phenyl and tert-butyl rotation as well as N-
inversion) have been determined by dynamic NMR spectroscopy in the two …
inversion) have been determined by dynamic NMR spectroscopy in the two …
Stereodynamics of N-Isopropyl-N-methylpropargylamine. Dynamic NMR Studies. Molecular Mechanics Calculations
JH Brown, CH Bushweller - The Journal of Organic Chemistry, 2001 - ACS Publications
N-Isopropyl-N-methylpropargylamine (N-isopropyl-N-methyl-2-propyn-1-amine; IMPA) is
chiral at the pyramidal nitrogen. Racemization occurs via an inversion− rotation process …
chiral at the pyramidal nitrogen. Racemization occurs via an inversion− rotation process …
The Structure of 2‐[(1S)‐(+)‐10‐camphorsulfonamino]‐6‐aminopyridine in the Solid State and in Solution; Unprecedented Cocrystallization of Four Stereoisomers
TR Chen, YY Wu, JD Chen, TC Keng… - Journal of the Chinese …, 2003 - Wiley Online Library
The solid and solution structures of a new optically active aminopyridine compound, 2‐[(1S)‐
(+)‐10‐camphorsulfonamino]‐6‐aminopyridine [(S)‐csaap], 1, are reported. Crystal data …
(+)‐10‐camphorsulfonamino]‐6‐aminopyridine [(S)‐csaap], 1, are reported. Crystal data …
Synthesis and reactivity of macrocyclic β-keto lactones
A Sharadendu - 1996 - open.library.ubc.ca
As a part of a continuing study of the chemistry and conformational behaviour of macrocyclic
β-keto lactones, 3-oxo-13-tetradecanolide (74) and 3-oxo-15-hexadecanolide (84) were …
β-keto lactones, 3-oxo-13-tetradecanolide (74) and 3-oxo-15-hexadecanolide (84) were …
[引用][C] The Structure of 2-[(1S)-(+)-10-camphorsulfonamino]-6-aminopyridine in the Solid State and in Solu tion; Unprec e dented Cocrystallization of Four …
TC Keng, JC Wang - Jour nal of the Chinese Chemi cal Soci ety, 2003