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                             51 gevonden resultaten
nr titel auteur tijdschrift jaar jaarg. afl. pagina('s) type
1 Acyloxymethyl as an activating group in lipase-catalyzed enantioselective hydrolysis. A versatile approach to chiral 4-aryl-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylates. Ebiike, Hirosato
 1991
 32 41 p. 5805-5808
4 p.
 artikel
2 A facile synthesis of alkylidenebutenolides via thermal rearrangement of benzisoxazolequinones Torres, Tomás
 1991
 32 41 p. 5825-5828
4 p.
 artikel
3 A ligand structure-enantioselectivity relationship for the osmium-catalyzed asymmetric dihydroxylation of olefins Ogino, Yasukazu
 1991
 32 41 p. 5761-5764
4 p.
 artikel
4 Anomeric effect on acidity; experimental and theoretical studies on proton abstraction at anomeric center of 1,5-anhydro-4,6-O-benzylidene-2,3-dideoxy-3-C-nitro-D-hex-2-enitol Sakakibara, Tohru
 1991
 32 41 p. 5809-5812
4 p.
 artikel
5 An unexpected reversal in the stereochemistry of transannular cyclizations. A stereoselective synthesis of (±)-epilupinine. Edstrom, Eric D.
 1991
 32 41 p. 5709-5712
4 p.
 artikel
6 Asymmetric synthesis of topographically constrained amino acids: synthesis of the optically pure isomers of α,β-dimethyl-phenylalanine and α,β-dimethyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid Kazmierski, Wieslaw M.
 1991
 32 41 p. 5769-5772
4 p.
 artikel
7 Biocatalytic desymmetrizations of pentitol derivatives Burgess, Kevin
 1991
 32 41 p. 5701-5704
4 p.
 artikel
8 Chiral Co(II) and Mn(II) catalysts for the 1,3-dipolar cycloaddition reactions of azomethine ylides derived from arylidene imines of glycine Allway, Philip
 1991
 32 41 p. 5817-5820
4 p.
 artikel
9 Cyanopuupehenol, an antiviral metabolite of a sponge of the order Verongida Hamann, Mark T.
 1991
 32 41 p. 5671-5672
2 p.
 artikel
10 Cycloaddition reactions of dimethyl maleate and fumarate with cyclopentadiene on γ-alumina. Competing mechanisms for epimerization of the diels-alder adducts. Bains, Satinder
 1991
 32 41 p. 5663-5666
4 p.
 artikel
11 3,4-Didehydro-β,β-caroten-2-one, a new carotenoid from the eggs of the stick insect Anisomorpha buprestoides Davidson, Bradley S.
 1991
 32 41 p. 5651-5654
4 p.
 artikel
12 Enantiocontrol by intrinsic antiparallel double repulsion on diacetone-d-glucose template. Kakinuma, Katsumi
 1991
 32 41 p. 5801-5804
4 p.
 artikel
13 Enantioselective addition of (Z)- and (E)-alkenylzinc bromides to aldehydes: asymmetric synthesis of sec-allylalcohols Oppolzer, Wolfgang
 1991
 32 41 p. 5777-5780
4 p.
 artikel
14 Enantioselective route to α-hydroxy aldehyde and acid derivatives Corey, E.J.
 1991
 32 41 p. 5713-5716
4 p.
 artikel
15 First synthesis of a strained 14-membered biaryl ether lactone by macrolactonization Justus, Karl
 1991
 32 41 p. 5781-5784
4 p.
 artikel
16 Fragmentation reactions of an oxafluorodiazirine Moss, Robert A.
 1991
 32 41 p. 5667-5670
4 p.
 artikel
17 Friedel-crafts reaction of α-(phenylseleno)carboethoxy methyl compounds Silveira, C.C.
 1991
 32 41 p. 5741-5744
4 p.
 artikel
18 Geographical abstracts 1991
 32 41 p. 5633-5645
13 p.
 artikel
19 Highly efficient and general method for synthesis of tertiary allylic alcohols in a chiral form. Synthesis of arbaprostil Okamoto, Sentaro
 1991
 32 41 p. 5793-5796
4 p.
 artikel
20 Hydrozirconation / transmetalation / alkylation: direct one-pot conversion of 1-alkynes to E-1,2-disubstituted alkenes Lipshutz, Bruce H.
 1991
 32 41 p. 5647-5650
4 p.
 artikel
21 Leporin A: an antiinsectan N-alkoxypyridone from the sclerotia of Aspergillus leporis TePaske, Mark R.
 1991
 32 41 p. 5687-5690
4 p.
 artikel
22 Methylenecyclopropanecarboxylates and -dicarboxylates, efficient reagents for the [3 + 2] methylenecyclopentane annulation of unactivated and electron-rich alkenes Singleton, Daniel A.
 1991
 32 41 p. 5765-5768
4 p.
 artikel
23 N-acyldihydropyridones as synthetic intermediates. A short synthesis of (±)-pumiliotoxin C. Comins, Daniel L.
 1991
 32 41 p. 5697-5700
4 p.
 artikel
24 Novel generation of azomethine ylide from N-(α-silylbenzyl)amide by silicon shift: an equivalent of nitrile ylide Ohno, Mitsuru
 1991
 32 41 p. 5813-5816
4 p.
 artikel
25 Palladium-catalyzed oxidative dimerization of stannylquinones. A simple method for the synthesis of symmetrical 2,2′-bisquinones. Liebeskind, Lanny S.
 1991
 32 41 p. 5681-5682
2 p.
 artikel
26 Paramiltioic acid, a novel rearranged norabietanoid from Salvia paramiltiorrhiza Sun, Xiao-Ru
 1991
 32 41 p. 5797-5800
4 p.
 artikel
27 Phase transfer catalyzed tert-alkylations of cyclopentadiene and indene: indications for set processes Dehmlow, Eckehard V.
 1991
 32 41 p. 5773-5776
4 p.
 artikel
28 Photochemistry of anthracene in water Sigman, Michael E.
 1991
 32 41 p. 5737-5740
4 p.
 artikel
29 Photolysis of N-2,4,6-trinitrophenyl substituted amino acids. Frederiksen, John
 1991
 32 41 p. 5823-5824
2 p.
 artikel
30 Preparation of enantiomerically enriched α-hydroxystannanes via enzymatic resolution Chong, J.Michael
 1991
 32 41 p. 5683-5686
4 p.
 artikel
31 Rapid synthesis of 2′,3′-dideoxycytidine (ddC) from a simple achiral precursor Jung, Michael E.
 1991
 32 41 p. 5717-5720
4 p.
 artikel
32 Regeneration of carbonyl compounds from semicarbazones by copper (II) chloride dihydrate Ram, Ram N.
 1991
 32 41 p. 5829-5832
4 p.
 artikel
33 Selective functionalization of the C2 hydroxyl group of N-carbobenzyloxy-4,6- O -benzylidene-1-deoxynojirimycin Getman, Daniel P.
 1991
 32 41 p. 5691-5692
2 p.
 artikel
34 Silver tetrafluoroborate induced reaction of trimethylsilyl enol ethers with 2,3-diiodo-1-(phenylsulfonyl)-1-propene as a method for preparing substituted furans Padwa, Albert
 1991
 32 41 p. 5673-5676
4 p.
 artikel
35 Stereocontrolled synthesis of HIV-1 protease inhibitors with C2-axis of symmetry K. Ghosh, Arun
 1991
 32 41 p. 5729-5732
4 p.
 artikel
36 Stereoselective cyclopropanation of homoallylic alcohols. Formal attachment of a cyclopropane to a preexisting ring Winkler, Jeffrey D.
 1991
 32 41 p. 5733-5736
4 p.
 artikel
37 Stereoselective methylations of bicyclic lactams derived from pyroglutamic acid Armstrong, Robert W.
 1991
 32 41 p. 5749-5752
4 p.
 artikel
38 Synthesis and conformation of unsubstituted calix[4]arene McMurry, John E.
 1991
 32 41 p. 5655-5658
4 p.
 artikel
39 Synthesis of 2-amino-9-(3′-azido-2′,3′-dideoxy-beta-D-erythro-pentofuranosyl)-6-methoxy-9H-purine (AzddMAP) and AzddGuo Almond, Merrick R.
 1991
 32 41 p. 5745-5748
4 p.
 artikel
40 Synthesis of a pyrido[1,2-a]purine nucleoside by a novel ring cleavage-annulation reaction of 3-β-D-ribofuranosylimidazo-[4,5-d]- v -triazin-4-one Krawczyk, Steven H.
 1991
 32 41 p. 5693-5696
4 p.
 artikel
41 Synthesis of arylsulfonylcarbamic acid derivatives using a new, phosgene-free method Besenyei, Gábor
 1991
 32 41 p. 5833-5836
4 p.
 artikel
42 Synthesis of optically active γ-trimethylsilyl-β,γ-epoxy tertiary alcohols by the diastereoselective addition reaction of β-trimethylsilyl-α,β-epoxyketones with Grignard reagents Okamoto, Sentaro
 1991
 32 41 p. 5789-5792
4 p.
 artikel
43 Synthesis of oxazolidine derivatives of β-[3-(aryloxy)aryl]-α-amino acids by application of the diels-alder reaction Olsen, Richard K.
 1991
 32 41 p. 5721-5724
4 p.
 artikel
44 Synthesis of (±)-Pentalenene Zhao, Shikai
 1991
 32 41 p. 5753-5756
4 p.
 artikel
45 The effect of phenyl substitution on the structure of benzylic anions Rabideau, Peter W.
 1991
 32 41 p. 5659-5662
4 p.
 artikel
46 The photochemistry of three tetrachloronaphthalenes Freeman, Peter K.
 1991
 32 41 p. 5705-5708
4 p.
 artikel
47 The stereoselective crotylboration of alpha-oxocarboxylic acids Wang, Zhe
 1991
 32 41 p. 5677-5680
4 p.
 artikel
48 The synthesis of dibenzofuran based diacids and amino acids designed to nucleate parallel and antiparallel β-sheet formation. Diaz, Humberto
 1991
 32 41 p. 5725-5728
4 p.
 artikel
49 Total synthesis of N-nornitidine Rigby, James H.
 1991
 32 41 p. 5757-5760
4 p.
 artikel
50 Total synthesis of (+)-Yingzhaosu A Xu, Xing-Xiang
 1991
 32 41 p. 5785-5788
4 p.
 artikel
51 Zinc chloride as a new catalyst for knoevenagel condensation Shanthan Rao, P.
 1991
 32 41 p. 5821-5822
2 p.
 artikel
                             51 gevonden resultaten
 
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