Orthoformic triethyl ester

The reaction of 2,2 -bipyrrole with orthoformic acid triethyl ester in the presence of phosphoryl chloride (POCI3) produced a compound which gave the H NMR spectrum 5. Which compound has been prepared ... [Pg.73]

Triethyl orthoformate Orthoformic acid, triethyl ester (8) Ethane, l,l, l"-[methylidynetris(oxy)]tris- (9) (122-51-0)... [Pg.145]

Triethyl orthoformate Orthoformic acid, triethyl ester Ethane,... [Pg.133]

Organoaluminum compounds, reaction with imino carbocations, 66, 189 Orthoester Claisen rearrangement, 66, 22 Orthoformic acid, triethyl ester, 65, 146 Oxalic acid, diethyl ester, 65, 146... [Pg.255]

In the presence of base the methylol 203 (R = H, OMe) reacted with acetic anhydride or triethyl orthoformate, giving esters 204a or alcohols 204b, respectively. The formation of ylide 205 was demonstrated under neutral conditions.163... [Pg.383]

Orthoformic acid triethyl ester Hydroxylamine hydrochloride 4-Trifluoromethylaniline Trifluoromethylaniline... [Pg.2020]

J H 1. orthoformic ocid triethyl ester 2. cyclopentyl alcohol P o u... [Pg.1581]

One can also acetalize carbonyl compounds completely without using the alcohol in excess. This is the case when one prepares dimethyl or diethyl acetals from carbonyl compounds with the help of the orthoformic acid esters trimethyl orthoformate HC(OCH3)3 or triethyl orthoformate HC(OC2H5)3, respectively. In order to understand these reactions, one must first clearly understand the mechanism for the hydrolysis of an orthoester to a normal ester (Figure 7.16). It corresponds step by step to the mechanism of hydrolysis of <9,<9-acctals, which was detailed in Figure 7.15. The fact that the individual steps are really strictly analogous becomes very clear when one takes successive looks at... [Pg.290]

Trlbutyltin hydride Stannane, tributyl- (688-73-3), 65, 236 Triethyl orthoformate Orthoformlc acid, triethyl ester Ethane,... [Pg.277]

SYNS AETHON ETHONE ETHYLESTER KYSELINY ORTHOMRAVENCI (CZECH) 1,1, 1 -(METH-YLIDYNETRIS(OXY))TRIS(ETHANE) ORTHOFORMIC ACID, ETHYL ESTER ORTHOFORMIC ACID, TRIETHYL ESTER ORTHO RAVENCAN ETHYLNATY (CZECH) TRIETHOXYMETHANE TRIETHYL ORTHOFORMATE... [Pg.641]

Reaction with reactive-methylene compounds. Claisen" developed a method for the preparation of diethyl ethoxymethylenemalonate by heating a mixture of triethyl orthoformate, malonic ester, and acetic anhydride with a catalytic amount of zinc chloride. The yield cited is that obtained in a standardized procedure."... [Pg.606]

According to the process of Bayer et al. (1969), the compound can also be obtained by the single-step reaction of orthoformic acid triethyl ester (68), formic acid hydrazine (69) and butylamine ... [Pg.411]

Triethyl ester, C7I I,40,. ethyl orthoformate, i,l T -[meth-ylidynetm(oxy)]tris[ethane], iriethoxymethane, triethyl orthoformate, Aethon. Prepd from chloroform and ethanol in presence of sodium Chu, Shen, C.A. 38, 29307 (1944). Liq. uid, sweetish odor resembling that of pine needles. 0.8909 djs 0.8858. bp, 143. mp below—18. n 1.3900. Slightly sol in water with decompn misc with ale, ether. LD orally in rats 7.06 g/kg, H. F. Smyth et at.. Arch. Ind. Hyg. Occup. Med. 4, 119(1951). [Pg.1088]

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