Sodium tetrahydridoborate

Palladium Arsenic, carbon, ozonides, sulfur, sodium tetrahydridoborate... [Pg.1210]

Palladium Paraformaldehyde Paraldehyde Pentaborane-9 Pentacarbonyliron Arsenic, carbon, ozonides, sulfur, sodium tetrahydridoborate Liquid oxygen Alkalies, HCN, iodides, nitric acid, oxidizers Dimethylsulfoxide Acetic acid, nitric oxide, transition metal halides, water, zinc... [Pg.1479]

Lithium tetrahydroaluminate Lithium tetrahydridoaluminate Sodium tetrahydroborate Sodium tetrahydridoborate Lithium trialkoxyhydridoaluminate Sodium bis(2-methoxyethoxy)dihydro-aluminate Diisobutylalane Tributylstannane... [Pg.17]

REDUCTION OF METAL CARBONYLS WITH ALKALI METALS AND SODIUM TETRAHYDRIDOBORATE IN LIQUID AMMONIA... [Pg.4]

Reduction by Sodium Tetrahydridoborate or Naphthalenide. These methods were applied to the reduction of nickel(II), palladium (II), and platinum(II) derivatives with tertiary diphosphines and diarsines (45, 4 )-... [Pg.321]

Reduction by Ethanolic Potassium Hydroxide. This reaction gives about the same results as hydrazine and sodium tetrahydridoborate. It gives excellent results in the preparation of the zerovalent complex isocyanides (127), phosphines, and phosphites (130). [Pg.321]

With the latter, an excess of the phosphine had to be used to obtain the tetracoordinated derivatives, while hydrazine without any excess of ligand gave the tricoordinated derivatives 130). Chatt and co-workers (45, 47j 51) obtained the nickel(0), palladium(0), and platinum(0) derivatives with the chelating diphosphines, diarsines, and triphosphines by reduction with sodium tetrahydridoborate or naphthanelide. [Pg.327]

The nature of platinum zerovalent derivatives was questioned by Chopoorian et al. (55) who considered them platinum(II) dihydrides. A new careful investigation (47, 133)j however, has confirmed that they are certainly zerovalent compounds. The nickel(0) derivatives with tertiary monophosphines can be obtained as well from NiBr2L2 and sodium tetrahydridoborate or ethanolic potassium hydroxide in the presence of an excess of the ligand 185) j while those with phosphites were prepared using potassium graphite 110) (CsK) as the reducing agent. By reduction with alkylmetals 199), zerovalent tetrasubstituted nickel (0) compounds with tertiary phosphine, arsines, and stibines have been obtained. [Pg.327]

An alternative to using metals is to use sodium tetrahydridoborate, NaBlTj. A significant advantage over the use of metal powders is that sodium tetrahydridoborate can form stable aqueous solutions. The hydrolysis reaction... [Pg.14]

A reaction known as hydroboration is of especial preparative importance for the conversion of olefins into alcohols.70-73 This consists in treating simple olefins such as ethylene, 1- or 2-pentene, cyclohexene, or styrene with sodium tetrahydridoborate in the presence of aluminum chloride at 25°, wherepon... [Pg.282]

Secondary amines from Schiff bases A 2-10 % methanolic solution of sodium tetrahydridoborate (100% excess) is dropped, with stirring, into a 5-10% methanolic solution of the Schiff base. The mixture is heated for 15 min under reflux, then cooled and treated with an equal volume of water, which precipitates the secondary amine produced. Thus were obtained, inter alia, N-benzyl-p-nitroaniline (90%), A -(p-nitrobenzyl)aniline (87%), and iV-benzylaniline (97%). [Pg.555]

Sodium tetrahydridoborate has proved particularly valuable for reduction of 2,2-bis-(2-chloroethyl)hydrazones of aliphatic ketones 48... [Pg.556]

A solution of sodium tetrahydridoborate (0.5 mole per mole of hydrazone) in a few ml of water and a little alcohol is dropped rapidly, with stirring, into a solution of a hydrazone (5 g) in ethanol (50 g) cooled to —15°. Stirring is continued at —15° to —10° for a further 2 h, then methanolic hydrochloric acid is added until the mixture is acidic. The solution is filtered from sodium chloride and evaporated, and the hydrochloride obtained is recrystallized from ethanol. Yields amount to 75-95 %. [Pg.556]

Sodium tetrahydridoborate Reductive O-debenzoylation with hydrogenation of carhon-nitrogen double bonds... [Pg.16]

Sodium tetrahydridoborate Sec. alcohols from ketones Stereospecific reduction... [Pg.25]

Sodium tetrahydridoborate sodium hydroxide Phenols from phenolketones... [Pg.32]

Sodium tetrahydridoborate boron fluoride Methylene from keto groups... [Pg.32]

Sodium tetrahydridoborate Replacement of nitro groups by hydrogen... [Pg.33]

Sodium tetrahydridoborate Reductive oxetane ring closure... [Pg.74]

Chloroplatinic acid s. under Sodium tetrahydridoborate Chlorosilanes s. Tridilorosilane, T rimethylchlorosilane N-Chlorosnccinimide 24, 575, 842... [Pg.233]

Sodium tetrahydridoborate Preferential reduction of lactams 1,1- c-Aminoethers Benzoxazoline ring opening... [Pg.297]

Sodium tetrahydridoborate (s. a. under NiCl2 and H2PtClg) Alcohols from a, -ethyleneketones C C CO... [Pg.300]

Sodium tetrahydridoborate I hydrogen chloride Aliphatic nitro compounds from 1,1-nitroethylene derivatives... [Pg.300]

Nickel chloride/potassium cyanide sodium tetrahydridoborate NiCyKCN/NalBHJ Carboxylic from a,/ -ethylenecarboxylic acids C C-COOH -> CHCHCOOH... [Pg.301]

Synonyms SBH Sodium tetrahydridoborate Sodium tetrahydroborate Empirical HjBNa Formula NaBH,... [Pg.1343]

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