3-Butyl-phthalide

Lovage root Levisticum officinale Koch 3-Butyl phthalide (32), ligusti-Ude (24), Ugusticum lactone ... 

The essential oil of celery, for example, contains 3-butyl-phthalide (63), 3-butyl-hexahydro-phthalide (64) as well as sedanolide (65) (705). The latter two lactones (64) and (65) have the characteristic odor and flavor of celery (705). Reports on the occurrence and importance of this class of aroma compounds are to be found in specialized review articles (795, 354). 

Fig. 102. Separation of some phthalides from coumarin. Layer silica gel GF254 detection fluorescence quenching in short wave UV light [258]. 1 phthalide 2 coumarin 3 isobutylidene-3a, 4-dihydrophthalide 4 phenylphthalide 5 butyl-phthalide 6 benzalphthalide 7 ligustilide blue fluorescence in 365 nm light 8 butylidene phthalide. G mixture 1—8...

S-Butyl-phthalid 17, 326, II363. 3-IsobaWl.phthalid 17 II363. 3.3-Diathyl-PlitI Hd 17, 326,1168, H 354. 

Methyl-4-tert..butyl-phthalid 17. 326. Laoton der 2-0CT-bomyIen-[ -acryb 4um].(3) 17 1169. 

The phthalides are the odoriferous principles and consist mostly of 3-u-butyl phthalide, sedanenolide(3- -butyl-4,5-dihydrophthalide),... 

Paired electrosynthesis of phthalide and p-fert-butyl benzaldehyde (Putter and Hannebaum, 2000) and 2,5 Dimethoxy-2,5-dihydrofuran from furan (Steckhan et al, 2000)... 

Gelatinizzahti (Gelatinizers). Belgrano (Ref 31, pp 218—19) lists Centralites, phthalides, alkyl-phthalates (such as ethyl butyl), diphenyl-urethane and ethylphenylurethane... 

The celery x parsley hybrid inherited all the terpenoids from celery and heptanol from parsley, while synthesizing new compounds of its own. The content of these new compounds was higher than that of the main celery components, limonene and myrcene (Madjarova et al., 1979). The volatile components of celery consisted of monoterpene hydrocarbons (46.0%) and phthalides (42.3%). The major components were limonene and 3-butyl-4,5-dihydrophthalide (or sedanenolide). Celery volatiles contained higher concentrations of y-lerpinene and a-pinene. A celery-like odour was associated during GC elution with each of the 16 phthalides reported (MacLeod and Ames, 1989). 

BUTYLHYDROXYOXOSTANNANE see BSL500 BUTYL a-HYDROXYPROPIONATE see BRR600 BUTYLHYDROXYTOLUENE see BFW750 BUTYLIDENE PHTHALIDE see BRQIOO... 

BUTYLIDENE PHTHALIDE see BRQIOO n-BUTYLIDENE PHTHALIDE see BRQIOO N-BUTYL-2,2 -IMINODIETHANOL see BQMOOO sec-BUTYL IODIDE see lEHOOO... 

Nitz, S., M.H. Spraul, F. Drawert, and M. Spraul. 1992. 3-Butyl-5,6-dihydro-4H-isobenzofuran-l-one, a sensorial active phthalide in parsley roots.. Agric. Food Chem. 40 1038-1040. 

Starting with a preformed A-ring, in the form of phthalide (162), Harris and cowotkers assembled the anthracene derivative (164) as shown in Scheme 8. The intermediate tetraketo diester (163) closes spontaneously under the conditions of its synthesis from (162) and the dianion of r-butyl acetoacetate. 

Senkyunolide Q (3Z-Butyl idene-4,5,6,7-tetrahydro-7/ -hydroxy-6 R-( 1 -oxobutyl)phthalide) 142235-81-2 Ligusticum chuanxiong [109]... 

Hollow fiber membranes made from poly(imide)/sulfonated PES, with a phthalide group, exhibit a high selectivity in the vapor permeation of mixtures of methanol and methyl-terf-butyl ether (MTBE) as high as 12,000. The structures of the polymers used are shown in Figure 7.11. 

Butylidenebis (6-t-butyl-3-methylphenol) 4,4 -Butylidenebis (3-methyl-6-t-butylphenol). See 4,4 -Butylidenebis (6-t-butyl-m-cresol) 3-Butylidene-1(3H)-isobenzofuranone Butylidene phthalide. See 3-Butylidenephthalide 3-Butylidenephthalide CAS 551-08-6 EINECS/ELINCS 208-991-3 FEMA 3333... 

As illustrated in Scheme 9.9, the proposed mechanism of forming phthalides and iso-coumarins involves orthopalladation of the carboxylic acid, subsequent alkenylation and nucleophihc cyclization or Wacker-type oxidative cyclization. The observed differences in product distributions from the reactions using n-butyl acrylate and styrene suggest that the electronic nature of the alkene plays an important role in product formation, although the exact origin of the difference remains unclear. 

PVC Pharmaceutical products Direct injection Nucleosil ODS, 200 X 4.6 mm, 5 p,m ACN/water (pH 2.7) sec 1 ml Phthalic acid, phenol Cyclohexanone Phthalide, benzoic acid Benzaldehyde, bispenol A Butyl hydroxyanisol Mono-(2-ethylhexyl) phthalate Dibutyl phthalate Di(2-ethylhexyl) phthalate [12]... 

In view of three excellent recent reviews on the Parham cyclization, " this section focuses mainly on the more recent literature. While -butyllithium and tert-butyllithium are commonly used to effect halogen-lithium exchange, these reagents do present problems as delineated earlier. Mesityllithium does not pose such problems since the resulting mesityl halides are not susceptible to the side reactions inherent with -butyl and tert-butyl halides. Mesityllithium has been used to prepare the camptothecin precursor 28. This base can also be used with added electrophiles, as for the conversion of 29 to phthalides 30. A more conventional Parham synthesis of phthalides, i.e., 31—>32, has been applied to the synthesis of the aristocularine alkaloids. ... 

Dibutyl phthalate cyclohexanone, phthalide 2-Ethyl-1 -hexanol 2,6-Di-rert-butyl-p-cresol Phthalates, fatty acids, phenols, siloxanes, acrylates, aliphatics, amides°... 

The cause of the typical smell of fresh parsley Petroselinum hortense) is p-mentha-l,3,8-triene (Figure 8.9). As in other vegetables of the Apiaceae family, important substances of root parsley and leaf parsley are phthalides. The main phthalides are sedanenolide, (E)-Hgustilide and butylphthahde, while (Z)- and (E)-butyhdene-phthahde, (Z)-ligustilide, (Z)-sedanolide and 3-butyl-5,6-dihydrophthalide are present in smaller amounts. Other important components of leaf parsley are linalool, P-dtroneUol, methyl... 

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