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Condition and yield

Table 9. Wilsonville Plant Operating Conditions and Yields for ITSL and CTSL Modes ... Table 9. Wilsonville Plant Operating Conditions and Yields for ITSL and CTSL Modes ...
The versatility of this reaction is extended to a variety of aldehydes. The bisphenol derived from 2,6-di-/ f2 -butylphenol and furfural, (25) where R = furfuryl (13), is also used as an antioxidant. The utility of the 3,5-di-/ f2 -butyl-4-hydroxyben2yl moiety is evident in stabili2ets of all types (14), and its effectiveness has spurred investigations of derivatives of hindered alkylphenols to achieve better stahi1i2ing quaUties. Another example is the Michael addition of 2,6-di-/ f2 -butyl phenol to methyl acrylate. This reaction is carried out under basic conditions and yields methyl... [Pg.61]

Table 1. Operating Conditions and Yields at Wilsonville Plant ... Table 1. Operating Conditions and Yields at Wilsonville Plant ...
In the early work, benzene formed the basis of a variety of multi-armed structures. Analogs bearing from 2—6 arms were prepared and compared for cation binding ability. The only indication of mode of synthesis for the hexa-substituted benzene derivative is that it was obtained on reaction of benzene-hexakis(methanethiol) and l-bromo-3,6,9-trioxatridecane . The reaction is illustrated in Eq. (7.6), below, devoid of reaction conditions and yields which were not specified. [Pg.314]

The dihydrazino derivative 6 can be transformed to the unsubstituted dibenzo[6,/][l, 5]diazocine (7) but the specific reaction conditions and yield were not reported.59... [Pg.551]

Compound oso angle (deg.) CSC angle (deg.) C—S length (pm) Reduction conditions and yield of sulphide... [Pg.938]

The corresponding half-imidic esters have also been used to afford 3-amino-2(17/)-quinoxalinones. The following examples illustrate typical conditions and yields. [Pg.36]

Like oxalic acid, oxalic esters and o-phenyldiamines give 2,3(l/7,4/7)-quinox-alinediones that bear substituents according to those on the substrate such condensations appear to be assisted substantially by microwave irradiation.1036 The corresponding half-imidic esters have also been used to afford 3-amino-2(l/7)-quinoxalinones. The following examples illustrate typical conditions and yields. [Pg.36]

The composition, reaction conditions, and yield of copolymer-1 (24-37 series ) are shown in Table 12. The content of 4N,4N-dimethyl-4-ammoniumhept-1,6-diene chloride in the reaction ranges from 0 to 30 molar percent of total monomer content. The concentration of lignin, calcium chloride, and monomer in the... [Pg.202]

A similar approach was used to prepare the octaglucosylated porphyrin derivative 34a obtained quantitatively after treatment of 34b with sodium methoxide and dry methanol (Fig. 3). The aldehyde used in the preparation of octaglucosylated derivative 34b was obtained in 90% yield by condensation of 3,5-dihydroxybenzaldehyde with acetobromoglucose 30 in the presence of Ag20.22 The condensation of pyrrole and the 2,5-bis(tetra-acetylglucopyranosyloxy)benzaldehyde occurred under Lindsey conditions and yielded porphyrinylsugar derivative 34b in 32%.22... [Pg.203]

The greater CH acidity of Meldrum s acid (ptfa 4.97), compared with the malonic esters, results in a more rapid mono- and dialkylation. Concomitant hydrolytic ring opening may occur under liquidtliquid two-phase conditions and yields of the monoalkyl-ated product tend to be low (30-40%) [ 111 ], but the ring is retained under non-aqueous solidtliquid two-phase conditions [112, 113]. Further alkylation of the monoalkylated derivatives with a second (different) alkylating agent is possible [112, 113]. [Pg.253]

Several variations of the slurry hydrogenation process, depicted in Fig. 24-6 and discussed below, were tested at pilot-plant scale. Table 24-12 presents typical operating conditions and yields for these processes. [Pg.18]

This book encompasses indiscriminately all the types of reductions and superimposes them over a matrix of types of compounds to be reduced. The manner of arrangement of the compounds is a somewhat modified Beilstein system and is explained in the introduction. Numerous tables summarize reducing agents and correlate them with the starting compounds and products of the reductions. Reaction conditions and yields of reductions are mentioned briefly in the text and demonstrated in 175 examples of reductions of simple types of compounds and in 50 experimental procedures. [Pg.319]

Table 2. Conditions and yields of bromolysis reactions according Scheme 12... Table 2. Conditions and yields of bromolysis reactions according Scheme 12...
They showed that use of the phosphonium IL resulted in milder conditions and yields comparable with conventional solvents. Both aliphatic and aromatic amines reacted well in presence of phosphonium ILs, in contrast with ammonium ILs where only aliphatic amines acted as Michael donors. Yang et al. demonstrated the use of aromatic amines and N-heterocycles as Michael donors in presence of a basic IL such as [emim]OH. They reacted cyclohexenone with aniline in presence of [emim]OH at room temperature to give the corresponding Michael adduct, Scheme 25. [Pg.177]

The cycloadduct obtained from ethyl diazoacetate and the cyclic phosphaalkene 9-ferf-butyl-1,3-diphenyl- 10-phospha-1,3-etheno- 17/-benzopyran-4(37/)-one underwent spontaneous [3-1-2] cycloreversion and produced ethyl 5-tert-butyl-1,2,4-diazaphosphole-3-carboxylate (163). Still another transformation was found for P-trimethylsilyl-substituted diazaphospholes system 94, which suffered dediazonia-tion under the cycloaddition conditions and yielded phosphaalkene 95 (162) (Scheme 8.22). It was proposed that N2 extrusion and SiMe3 migration occur in concert. On the other hand, the cycloaddition products derived from phosphaalkene 93 and 2,2-dimethyl-1-diazopropane or diazo(trimethylsilyl)methane simply underwent tautomerization to the corresponding A -phosphapyrazoline (162) (94, R = f-Bu H shift R = SiMe3 SiMe3 shift). [Pg.561]

In contrast to the ease of reaction of ring nitrogen atoms in 77-deficient six-membered heterocycles with electrophiles, electrophilic heteroaromatic substitution at carbon of the unsubstituted compounds proceeds only under very drastic conditions and yields of products are usually very poor. This is also true with pyridinium, pyrylium and thiopyrylium salts,... [Pg.34]

V is the voltage applied to the system. Unit activity coefficients and zero standard counterion potentials in both phases are assumed for the sake of simplicity. As was pointed out in 4.3, the solution of (4.4.15)-(4.4.22) with voltage V given corresponds to potentiostatic experimental conditions and yields the concentration, electric potential fields, and the ionic fluxes as functions of V. We could alternatively fix the total current density... [Pg.141]

Attempts to isolate 2,3-dimethoxyfuran (156) have, as yet, been fruitless (79JCS(P1)1893), but it may be generated in situ and trapped with the propiolate (155) the initial adducts (157) are unstable under the acidic conditions and yield the biphenyls (158) and (159) (Scheme 67). 2,5-Bis(trimethylsilyloxy)furans, readily available from succinic anhydrides in one step, are also more reactive than furan in Diels-Alder reactions (80TL3423). They readily undergo reaction with both DMAD and ethyl acrylate. Thus at 50 °C in carbon tetrachloride the furan (160) with DMAD followed by detrimethylsilylation gave only the quinone (163). At 80 °C, however, the hydroquinone (164) is the major product. Both the intermediates (161) and (162) may be detected by ]H NMR spectroscopy. The formation... [Pg.625]

Triazine is resistant to electrophilic substitution. Chlorination requires vigorous conditions, and yields are low bromination is a more efficient process (Scheme 6). The reagents employed in the attempted sulfonation or nitration preferentially hydrolyze the ring (63AG(E)309). Recently, Korolev and Mal tseva have reported that 1,3,5-triazine is protonated and hydrated to form the cation shown in equation (2) (75ZOR2613). [Pg.469]

The 550°-850°F heavy oil from the third distillation was hydrogenated in a continuous 174-hr run. No deactivation of the catalyst was evident from analyses of samples of the liquid product taken during the run, and yields of liquid and gaseous product and hydrogen consumption were constant with time throughout the total test. Operating conditions and yields of products are in Table VI. Approximately 40 wt % of the heavy oil was converted to products boiling below 550°F, of which... [Pg.91]

First-stage studies were made over an extended period of time with some variations in process conditions. Denitrified products from these studies were blended and used as second-stage feed. Table X shows the inspections of this blend and also the processing conditions and yields that correspond to making a second-stage feed of this quality. [Pg.94]

The preparation of catalysts is often easier in heterogeneous catalysis, and products are definitely easier to separate. Nevertheless, homogeneous catalysis has the substantial advantage of typically requiring milder conditions and yielding a higher selectivity. This increases the purity of the products and reduces the amount of waste, two concepts which are very useful considering the desires to develop a more environmentally friendly chemical industry. [Pg.118]

TABLE 12.6. Conditions and Yields for the 1,2-Phenyl Shift in Diphenylallenyl Ketones... [Pg.364]


See other pages where Condition and yield is mentioned: [Pg.28]    [Pg.208]    [Pg.304]    [Pg.280]    [Pg.281]    [Pg.211]    [Pg.95]    [Pg.9]    [Pg.263]    [Pg.486]    [Pg.30]    [Pg.306]    [Pg.497]    [Pg.74]    [Pg.492]    [Pg.162]    [Pg.297]    [Pg.84]    [Pg.3]    [Pg.82]    [Pg.164]   
See also in sourсe #XX -- [ Pg.497 ]

See also in sourсe #XX -- [ Pg.497 ]




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Interactions Between Process Conditions, Yields, and Equipment

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