𝔖 Bobbio Scriptorium
✦   LIBER   ✦

(Pyrazolylborato)zinc−Aldehyde Complexes

✍ Scribed by Rainer Walz; Michael Ruf; Heinrich Vahrenkamp


Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
274 KB
Volume
2001
Category
Article
ISSN
1434-1948

No coin nor oath required. For personal study only.

✦ Synopsis


The zinc hydroxide complex Tp Cum,Me Zn-OH [1, Tp Cum,Me = tris(3-cumenyl-5-methylpyrazolyl)borate] reacts with trichloroacetaldehyde and pentafluorobenzaldehyde to form the complexes Tp Cum,Me Zn-O(CHOH)R, containing the aldehyde ligands as the deprotonated aldehyde hydrates. 1 and 2-formylphenol, 2,6-diformylphenol and 2-formylthiophenol undergo condensation with the formation of the correspond-


📜 SIMILAR VOLUMES


Aldehyde Complexes of Zinc Halides
✍ Bodo Müller; Heinrich Vahrenkamp 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 125 KB 👁 1 views

yields after careful layering with petroleum ether. The re- [a] Institut für Anorganische und Analytische Chemie der Unisulting zinc complexes belong to one of the three classes A,

Zinc-Aldehyde Complexes with Weakly Coor
✍ Bodo Müller; Heinrich Vahrenkamp 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 208 KB

Zinc salts of low or zero water content were obtained from isolated and identified by crystal structure determinations. All contain octahedral zinc to which 2, 3, 4, 5, or 6 aldehyde the hexahydrates of zinc nitrate, zinc perchlorate, and zinc tetrafluoroborate by dehydration with triethoxymethane o

Zinc Complexes of Chelating Aldehydes
✍ Bodo Müller; Heinrich Vahrenkamp 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 168 KB

hyde in solution and on its removal by precipitation. How- [a] Institut für Anorganische und Analytische Chemie der Universiever, when the zinc halide and the aldehyde were dissolved tät Freiburg,

Asymmetric Alkynylation of Aldehydes Cat
✍ Chun SHEN; Lei CHEN; Jie TANG; Minghua XU 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 89 KB 👁 1 views

## Abstract The asymmetric alkynylation of aldehydes catalyzed by bifunctional Zn(salen) catalyst was realized. With a Kozlowski salen ligand (7e) bearing secondary basic 1‐piperidinylmethyl groups at C‐3 and C‐3′, the enhanced catalytic reactivity and stereoselectivity in comparison with that of n