scholarly journals GAS CHROMATOGRAPHIC RETENTION BEHAVIOUR OF TRIFLUOROACETYL, ACETYL AND TRIMETHYLSILYL DERIVATIVES OF VARIOUS O-METHYLSORBITOLS

1978 ◽  
Vol 34 (8) ◽  
pp. T366-T375
Author(s):  
Koh-ichi Kajiyama ◽  
Yoshiko Hayashi
Keyword(s):  
Chromatographic Retention ◽  
Retention Behaviour ◽  
Trimethylsilyl Derivatives ◽  
Derivatives Of

Synthesis and Identification of ω-Phenylalkylcatechols in Burmese Lac

1988 ◽  
Vol 41 (1) ◽  
pp. 19 ◽  
Author(s):  
A Jefferson ◽  
MV Sargent ◽  
S Wangchareontrakul
Keyword(s):  
Natural Products ◽  
Catalytic Hydrogenation ◽  
Wittig Reaction ◽  
Spectral Characteristics ◽  
Chromatographic Retention ◽  
Phosphonium Bromide ◽  
Mass Spectral ◽  
Trimethylsilyl Derivatives ◽  
Derivatives Of

The presence of 3-(10′-phenyldecyl)-(2) (2%), 3-(12′-phenyldodecyl)- (3) (6%), 4-(10′-phenyldecyl)-(4) (0.3%) and 4-(12′-phenyldodecyl)- benzene-1,2-diol (5) (0.3%) in Burmese lac , the sap of Melanorrhoea usitata Wall has been confirmed by the synthesis of these compounds and a comparison of the gas chromatographic retention times and the mass spectral characteristics of their bis-O-( trimethylsilyl ) derivatives with the derivatives of the natural products. Typically, 3,4- bis ( benzyloxy ) benzaldehyde (7) on Wittig reaction with triphenyl (11- phenylundecyl ) phosphonium bromide (20) and subsequent catalytic hydrogenation of the resultant olefin gave compound (5) in 59% overall yield.

ChemInform Abstract: TRIMETHYLSILYL DERIVATIVES OF TITANIUM

1978 ◽  
Vol 9 (19) ◽  
Author(s):  
G. A. RAZUVAEV ◽  
V. N. LATYAEVA ◽  
L. I. VYSHINSKAYA ◽  
A. V. MALYSHEVA ◽  
G. A. VASI'EVA
Keyword(s):  
Trimethylsilyl Derivatives ◽  
Derivatives Of

ChemInform Abstract: N-Trimethylsilyl Derivatives of Thiolactams in N-Amido- and N- Sulfonamidoalkylation.

ChemInform ◽  
2010 ◽  
Vol 25 (43) ◽  
pp. no-no
Author(s):  
V. N. SERGEEV ◽  
S. A. ARTAMKIN ◽  
YU. I. BAUKOV
Keyword(s):  
Trimethylsilyl Derivatives ◽  
Derivatives Of
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