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Titolo:
SYNTHESIS AND CHARACTERIZATION OF (4S)-1-CHLOROALKYLSILATRANE-4-CARBOXYLIC ACIDS CRYSTAL-STRUCTURES OF ,4S)-1-CHLOROMETHYL-3-METHYLSILATRANE-4-CARBOXYLIC ACID AND -1-(3-CHLOROPROPYL)-3-METHYLSILATRANE-4-CARBOXYLIC ACID
Autore:
LU ZR; ZHUO RX; SHEN LR; ZHANG XD; SHEN LF;
Indirizzi:
WUHAN UNIV,DEPT CHEM WUHAN 430072 PEOPLES R CHINA WUHAN UNIV,DEPT CHEM WUHAN 430072 PEOPLES R CHINA CHINESE ACAD SCI,WUHAN INST PHYS WUHAN 430071 PEOPLES R CHINA
Titolo Testata:
Journal of organometallic chemistry
fascicolo: 1-2, volume: 489, anno: 1995,
pagine: 38 - 43
SICI:
0022-328X(1995)489:1-2<38:SACO(>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
SILATRANES;
Keywords:
SILICON; SILATRANE COMPOUNDS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
8
Recensione:
Indirizzi per estratti:
Citazione:
Z.R. Lu et al., "SYNTHESIS AND CHARACTERIZATION OF (4S)-1-CHLOROALKYLSILATRANE-4-CARBOXYLIC ACIDS CRYSTAL-STRUCTURES OF ,4S)-1-CHLOROMETHYL-3-METHYLSILATRANE-4-CARBOXYLIC ACID AND -1-(3-CHLOROPROPYL)-3-METHYLSILATRANE-4-CARBOXYLIC ACID", Journal of organometallic chemistry, 489(1-2), 1995, pp. 38-43

Abstract

(4S)-1-(chloromethyl)silatrane-4-carboxylic acid 1 and ,4S)-1-chloromethyl-3-methylsilatrane-4-carboxylic acid 2 were synthesized by the transesterification of chloromethyltriethoxysilane with L-N,N-bis(2-hydroxyethyl)serine or L-N,N-bis(2-hydroxyethyl)threonine in the presence of pyridine. (4S)-1-(3-chloropropyl)silatrane-4-carboxylic acid 3 and -1-(3-chloropropyl)-3-methylsilatrane-4-carboxylic acid 4 were similarly synthesized from the reaction of 3-chloropropyltrimethoxysilane with the chiral ligands. The compounds were characterized by elemental analyses, IR spectra, H-1 and C-13 NMR spectra and mass spectra. The structures of compounds 2 and 4 were determined by X-ray single crystal diffraction. It is shown that the silatranyl carboxylic acids are linked by the intermolecular hydrogen bonds to give linear polymer in the crystals, and the equatorial Si-O oxygens behave as proton accepters. It seems that the influence of the carboxylic group on the Si-N dative bond of compound 4 is greater than that of compound 2.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/07/20 alle ore 19:24:23