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1
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0000968031
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Titanat-katalysierte enantioselektive Addition vonin situ aus Grignard-Reagentien in Ether erzeugten Alkylzinkverbindungen an Aldehyde
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Preliminary communication
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(1991)
Angewandte Chemie
, vol.103
, pp. 991-992
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Seebach1
Behrendt2
Felix3
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8
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0002291128
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Organometallverbindungen von Titan und Zirconium als selektive nucleophile Reagentien für die Organische Synthese
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(1983)
Angewandte Chemie
, vol.95
, pp. 12-26
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-
Weidmann1
Seebach2
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19
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0002517081
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Asymmetric (2+2) cycloaddition reaction between .ALPHA., .BETA.-unsaturated acid derivatives and alkynyl or alkenyl sulfides catalyzed by a chiral titanium reagent.
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(1990)
Chemistry Letters
, pp. 1295-1298
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-
Hayashi1
Narasaka2
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23
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0002098511
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Katalytische und stöchiometrische enantioselektive Additionen von Diethylzink an Aldehyde mit Hilfe eines neuartigen chiralen Spirotitanats
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(1991)
Angewandte Chemie
, vol.103
, pp. 100-101
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-
Schmidt1
Seebach2
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27
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0001956304
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Enantioselektive Addition von Organometallreagentien an Carbonylverbindungen: Übertragung, Vervielfältigung und Verstärkung der Chiralität
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For an up to date review see
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(1991)
Angewandte Chemie
, vol.103
, pp. 34-55
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-
Noyori1
Kitamura2
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37
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84987584214
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Catalytic asymmetric synthesis ofSecondary (E)-allyl alcohols from acetylenes and aldehydesvia (1-alkenyl)zinc intermediates. Preliminary Communication
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(1992)
Helvetica Chimica Acta
, vol.75
, pp. 170-173
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Oppolzer1
Radinov2
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50
-
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84918186504
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-
2 (filtration after addition of 1.3 equiv. dioxan) or from Zn and RI in THF also gave satisfactory enantioselectivities (82 – 96% ee with R = Et, Pr, Bu) following the procedure described in section B, but the reaction was very slow and gave poor yields even after 50 h at −15°C.
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-
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51
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84918186503
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Allylzinc reagents show quantitative conversion to the product alcohols, but fail to give any enantioselectivity, while benzylzinc reagents react extremely sluggishly and unselectively.
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-
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54
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84918186502
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Enantiomeric ratios of only 4:1 could be reached with salt-free Reformatzky-type reagents under various conditions
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(1991)
Diplomarbeit ETH-Zürich
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Kaufmann1
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55
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84918186501
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Similarly alkynyl- and furanylzinc reagents showed disappointingly low (58 : 42 and 40 : 60 resp.) enantioselectivities.
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63
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37049145014
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CVII.?Investigations on the dependence of rotatory power on chemical constitution. Part VI. The optical rotatory power of methyl-tert.-butyl-, methylbenzyl-, methylphenylethyl- and methyl-?-naphthyl-carbinols
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(1914)
Journal of the Chemical Society, Transactions
, pp. 1115
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Pickard1
Kenyon2
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67
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84918186500
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Beilsteins Handbuch der Organischen Chemie, Vol. 6 (III) p. 1845.
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68
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84918186499
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Beilsteins Handbuch der Organischen Chemie, Vol. 6 (III) p. 1952; ibid. Vol. 6 (IV) p. 3370
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72
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84918186497
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Beilsteins Handbuch der Organischen Chemie, Vol. 6 (III) p. 1952; ibid. Vol. 6 (IV) p. 3370
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74
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84918186496
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Beilsteins Handbuch der Organischen Chemie, Vol. 6 (II) p. 510.
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75
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84918186495
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Beilsteins Handbuch der Organischen Chemie, Vol. 6 (II) p. 505.
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76
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84918186494
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Beilsteins Handbuch der Organischen Chemie, Vol. 6 (II) p. 510.
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82
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84918186493
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Beilsteins Handbuch der Organischen Chemie, Vol. 6 (III) p. 175.
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