Total syntheses of (+)- and (-)-1-deoxynojirimycin (1,5-dideoxy-1,5-imino-D- and L-glucitol) and of (+)- and (-)-1-deoxyidonojirimycin (1,5-dideoxy-1,5-imino-D- and L-iditol) via furoisoxazoline-3-aldehydes
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This report presents the conjoint work carrying out by Laurent Drouet and Marc Vielle (the GEMINI-E3 team, REME) and Maryse Labriet and Richard Loulou (the ETSAP-TIMES, KANLO team) in order to build a master program which drives the coupling of the top-dow ...
Reaction of N,N-dibenzyl-O-methylsulfonyl serine Me ester with a variety of heteronucleophiles (sodium azide, sodium phthalimide, amines, thiols) and carbanions (sodium malonate) gave, via an aziridinium intermediate, the corresponding beta -amino or alpha ...
A mock-up gun has been manufactured as exact replica of the refurbishment first prototype EU 170 GHz/2MW/CW coaxial cavity gyrotron, but without emitter ring in order to validate the voltage standoff stability. The experimental results of the mock-up gun t ...
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Applications of thin SixNy membranes may be found in miscellaneous fields such as MEMS and NEMS as well as biotechnology. FIB is an excellent tool in order to realize nano-structures on membranes achieving the ultimate limits and rapid prototyping. ...
Contemporary society is based on a perpetual evolution of personal opinions and likings. The transmission of knowledge is questioned, but if the education and teaching about a critical vision is considered an essential instrument, so the schools and the ma ...
The main goal of this project is to build a mean and to populate a database with correct information regarding some decided pairings. This database will then be compared to the results of algorithms that process the same pairings, which provides a way to a ...
The Bingel addn. of a trimalonate derived from a chiral, cyclotriveratrylene (CTV)-based tripodal tether to C60 was reinvestigated. The present use of enantiomerically pure (P)- and (M)-configured CTV units in the tether allowed the isolation of a total of ...
During the entry, descent and landing phase (EDL) of the missions to Mars, the spacecraft's high dynamics imprints severe Doppler swings on the signals transmitted via the direct-to-Earth (DTE) channel. In order to recover the data that record the mission ...
Both enantiomers of an optically active trialkynyl(phenyl)methane (the key building blocks in the construction of a stable expanded cubane) have been prepd. The strategy involved the resoln. of a racemic intermediate by means of HPLC on a chiral stationary ...
After alpha,alpha'-dimetalation, both 2,2'-diallyloxy-1,1'-binaphthyl and 2,2'-di-2-methylallyloxy-1,1'-binaphthyl undergo the Wittig rearrangement with perfect diastereoselectivity. When racemic 1,1'-binaphthyl-2,2'-diol ("BINOL") is used as the starting ...
