CHEMICAL PROBLEMS
A SEPARATING SURFACE LAYER AS KEY FACTOR OF ENVIRONMEMT CHANGE
OBTAINING OF NEW NON-IONOGENIC SURFACE-ACTIVE SUBSTANCES
COMPARATIVE ANALYSIS OF OXYALKYLATION REACTION OF FERROCENE AND SYMANTRENE WITH ACETONE AT INTE-RPHASE CATALYSIS MEDIA
SELF-DAMPING POLYMER CONPOSITIONS
DEPENDENCE OF FILTERING DURATION ON PRESSURE AT CONSTANT SPEED
DEVELOPMENT OF TECHNOLOGY OF OBTAINING BORSUPERPHOSPHATE BY MEANS OF TWO-STEP NEUTRALIZATION
EFFECT OF MEDIUM ACIDITY ON EQUILIBRIUM SORPTION OF SOME METALS IONS BY PHOSPHORUS-CONTAINING POLYMERIC SORBENT
THE KINETICS OF THE REACTION OF VAPOR PHASE DEHYDRATION OF PENTANOL-2 AT THE SINTHETIC ZEOLITE NAY
SYNTHESIS AND STUDY OF (S,R)-4-(BROMOMETHYL)-1,3-DIOXALAN-2-YL)- AND (S,R )-5-(CHLOROMETHYL)-1,3-OXATHIOLAN-2-YL)METHYL BENZOATES
For the first time 1,3-dioxalane and 1,3-oxathiolane derivatives containing hydroxymethyl and halomethyl groups have been synthesized, their isomers isolated by chromatographic method. The configurational structures sis-, and trans- isomers of ((S,R)- (4-(bromomethyl)-1,3-dioxolan-2-yl)-(3a,b), ((S,R)- (5-(chloromethyl)-1,3-oxathiolan-2-yl)methyl benzoates (5a,b) have been completely assigned by 500 MHz 1H COSY NMR spectroscopy.