منابع مشابه
Stereospecific Constructions of Chiral > Lactams
I. Amino Acids A. Alkylamino Acids: :-Alkylamino acids, L-proline, L-valine. B. Hydroxyamino Acids: L-Serine, L-threonine, D-allothreonine, L-isoserine. C. Amino-amino Acids: L-2,3-Diaminopropionic acid, L-2,4-diaminobutyric acid. D. Carboxyamino Acids: L-Aspartic acid, 3-amino-pentanedioic acids. E. Thioamino Acids: D-Penicillamine, DOr L-methylcysteine, L-cysteine, L-methionine. F. Amido-amin...
متن کاملPolymerization of propylene in a minireactor: Effect of polymerization conditions on particle morphology
Gas phase polymerization of propylene was carried out in a semi-batch minireactor using a commercially supported Ziegler–Natta (ZN) catalyst. The influence of variables including monomer partial pressure, external electron donor, reaction temperature and time on the particle morphology and size distribution was investigated. Generally, more uniform fragmentation and particle densities were obta...
متن کاملSynthesis of spirocyclic carbazole- and acridine-lactams.
Spirocyclic carbazole- and acridine-lactams were prepared by Fischer-indole or Friedländer-quinoline synthesis starting from spirocyclic ketones with a lactam ring. All annulation products were obtained as mixtures of separable regioisomers, which differ only in the position of one methyl group. The starting materials were prepared from 2-pyrrolidone and 2-piperidone by a sequence of protection...
متن کاملAlkaline earth metal complexes of a chiral polyether as initiator for the ring-opening polymerization of lactide.
A chiral, tetradentate polyether ligand with a trans-1,2-cyclohexanediyl backbone, bis(methoxyethoxy)-trans-1,2-cyclohexane (5), was synthesized as both a racemate and the (S,S) enantiomer. 5 was found to form stable adducts with alkaline earth metal amides [M{N(SiMe(3))(2)}(2)(thf)(x)] (M = Mg (x = 0), Ca (x = 2) and Sr (x = 2/3)), [Ca{N(SiHMe(2))(2)}(2)(thf)] as well as with hydrocarbyl compo...
متن کاملInducible Polymerization and Two-Dimensional Assembly of the Repeats-in-Toxin (RTX) Domain from the Pseudomonas aeruginosa Alkaline Protease
Self-assembling proteins represent potential scaffolds for the organization of enzymatic activities. The alkaline protease repeats-in-toxin (RTX) domain from Pseudomonas aeruginosa undergoes multiple structural transitions in the presence and absence of calcium, a native structural cofactor. In the absence of calcium, this domain is capable of spontaneous, ordered polymerization, producing amyl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nippon kagaku zassi
سال: 1967
ISSN: 0369-5387,2185-0917
DOI: 10.1246/nikkashi1948.88.6_577