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Marco Cereghetti Patents |
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Inventor: Cereghetti; Marco
Address: Basel, CH
No. of patents: 9
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 6037479 |
Chiral diarsine compounds |
March 14, 2000 |
| Novel, chiral diarsine compounds, which are present in the (R)- or (S)- or (rac)-form, of the formula ##STR1## wherein R signifies an optionally substituted aryl from the group of phenyI, naphthyl, furyl and thienyl; C.sub.3-8 -cycloalkyl or C.sub.1-8 -alkyl;R.sup.1, R.sup.2, R.s |
| 5516944 |
Optically active phosphorous compounds |
May 14, 1996 |
| The present invention is concerned with novel optically active phosphorus compounds of the general formula ##STR1## wherein R and R.sup.1 each independently signify hydroxy, a protected hydroxy group, lower alkyl or lower alkoxy andR.sup.2 to R.sup.5 each independently signify alkyl |
| 5508438 |
Phosphorus compounds |
April 16, 1996 |
| Novel, racemic and optically active phosphorus compounds of the formula ##STR1## wherein R signifies lower alkyl, lower alkoxy, hydroxy or a protected hydroxy group, R.sup.1 and R.sup.2 are different from each other and represent lower alkyl, cycloalkyl, aryl, a five-membered heteroa |
| 5488172 |
Chiral phosphorus compounds |
January 30, 1996 |
| Novel chiral phosphorus compounds of the formula ##STR1## wherein R signifies lower alkyl, R.sup.1 signifies phenyl and R.sup.2 and R.sup.3 signify hydrogen or lower alkoxy,which are suitable in the form of complexes with a metal of Group VIII as catalysts for asymmetric hydrogenatio |
| 5334766 |
Process for the resolution of racemic diphosphine oxides |
August 2, 1994 |
| A process for the resolution of racemic diphosphine oxides into the optically active antipodes by reacting the racemate with a resolving agent comprising using a carbamate or thiocarbamate of an optically active .alpha.-hydroxycarboxylic acid or .alpha.-aminocarboxylic acid as the re |
| 4309539 |
Pyrimidine derivatives |
January 5, 1982 |
| Optically active pyrimidines of the formula ##STR1## wherein Z is --(CH.sub.2).sub.n -- or --(CH.sub.2).sub.n --O-- wherein n is an integer of 1 to 4 and each of the symbols X is a nitrogen atom and each of the symbols Y is --CH-- or each of the symbols Y is a nitrogen atom and e |
| 4066570 |
Phenyl-pyrimidines |
January 3, 1978 |
| Phenyl-pyrimidines of the formula ##STR1## wherein R.sub.1 and R.sub.2 are as hereinafter set forth, are described. The end products are useful as liquid crystals. |
| 4062798 |
Phenylpyrimidine derivatives |
December 13, 1977 |
| Compounds of the formula ##STR1## wherein when X is nitrogen, Y and Z are --CH--; or when Y is nitrogen, X and Z are --CH--; or when Z is nitrogen, X and Y are --CH--; and one of R.sub.1 and R.sub.2 is cyano and the other is straight-chain alkyl of 1 to 7 carbon atoms, straight-c |
| 3997536 |
Phenyl-pyrimidines |
December 14, 1976 |
| Phenyl-pyrimidines of the formula ##STR1## wherein R.sub.1 and R.sub.2 are as hereinafter set forth, are described. The end products are useful as liquid crystals. |
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