Organic Syntheses: v. 31 by R.S. Schreiber

By R.S. Schreiber

Show description

Read or Download Organic Syntheses: v. 31 PDF

Similar organic chemistry books

Peptide and Protein Design for Biopharmaceutical Applications

Peptides function powerful medicines within the health center at the present time. but the inherent drawbacks of peptide constructions can restrict their efficacy as medicines. to beat this researchers are constructing new easy methods to create ‘tailor-made’ peptides and proteins with more suitable pharmacological properties.

Design of Peptides and Proteins presents an outline of the experimental and computational tools for peptide and protein layout, with an emphasis on particular purposes for therapeutics and biomedical examine. subject matters coated include:
<ul type="disc">* machine modeling of peptides and proteins* Peptidomimetics* layout and synthesis of cyclic peptides* Carbohydrates in peptide and protein layout* De novo layout of peptides and proteins* scientific improvement functions* a longer case examine – the layout of insulin variants

Design of Peptides and Proteins provides the state of the art of this interesting technique for therapeutics, with contributions from foreign specialists. it really is a necessary source for educational and business scientists within the fields of peptide and protein drug layout, biomedicine, biochemistry, biophysics, molecular modelling, man made natural chemistry and medicinal/pharmaceutical chemistry.

Quality: Vector, Searchable, Bookmarked

Heteroatom Manipulation, Volume Volume 6

During this quantity, these useful teams containing heteroatoms that experience won value in natural synthesis are handled intimately. The advent of those quite a few teams and their correct differences are defined and some of the facets of chemoselectivity, regioselectivity and stereoselectivity are mentioned.

Extra resources for Organic Syntheses: v. 31

Sample text

NiLn or PdLn R [10, 102] X H H ArI 2 cat. PdLn, ZnCl2 R H [12] Ar X R H R1 H cat. PdLn R H ZrCp2Cl [11, 102] H H H R1 H X R2 R1 R3 ZrCp2Cl cat. PdLn, ZnCl2 [103] R3 Ar R2 R1 R3 [12] X R1 cat. PdLn, ZnCl2 R H cat. 23. Pd- or Ni-catalyzed cross-coupling reactions of alkenylzirconium derivatives by Zr-to-Pd (or Ni) transmetallation. R H Me Ar R ArX cat. NiLn or PdLn, ZnX2 R1ZnX(MgX) cat. NiLn or PdLn [12] X [107] H RC cat. PdLn, ZnX2 Me [12] X H R cat. PdLn R Me H R Ar Me R Me H COR1 Me [103] X Ar cat.

70 to 0 oC H H Addition of allylzirconocene derivatives to aldehydes. 28. R EtO RCHO Lewis acid [118] OH OH RCHO R H+ [117] OEt R O OH OEt OEt Addition of g,g-bis(ethoxy)allylzirconocene derivatives to aldehydes. 1. R3CN R1 R1R2CO ZrCp2 R ZrCp2 R2 O OH 2. H+ O H+ ZrCp2 R2 R1 OH R2 OR1 O RCOOR1 R1 R H+ R O RCN ZrCp2 R N H+ R ZrCp2 O 1. R1COR2 2. 29. R1 R R2 O HO Addition of 1,3-dienezirconocene complexes to carbonyl compounds and nitriles. 30. + Me R2 C C C R Me No reaction Reactions of a-titana- or a-zirconaorganoalanes with carbonyl compounds.

15. 16. O Synthesis of other three-membered zirconacycles. Cp2ZrCl2 PhC Cp2Zr [49] O SiMe2Ph Cp2Zr Me PhMe2SiLi Cl Ph SiMePh Ph Si Cp2Zr PhMe2Si D2O Ph D D CH2 H Me Si Ph Cp2Zr CH2 Ph SiMePh Synthesis of zirconasilacycles by b-H abstraction. 14). No alkenes or alkynes are used as temporary ligands in this protocol. Unless hydrozirconation is used to generate the initial organylzirconocene derivatives, even final alkene or alkyne ligands are not usually derived from the corresponding p-compounds.

Download PDF sample

Organic Syntheses: v. 31 by R.S. Schreiber
Rated 4.76 of 5 – based on 25 votes