Di-isobutyryl

Der daneben durch zweimalige Isobutyrylierung entstehende Di-isobutyryl-isobuttersaureester laBt sich durch Triphenyl-methyl-Natrium zu Hexamethyl-phloroglucin kondensieren ... 

Treatment of the diethylketal of methyl isobutyryl ketone with morpholine did not give the above condensation product (63), but led to a mixture of di- and tetrasubstituted isomers (124 and 125). 

Sass JO, Sander S, Zschocke J. Isobutyryl-CoA dehydrogenase deficiency isobutyrylglydnuria and ACAD8 gene mutations in two infants. J Inherit Metab Dis. 2004 27(6) 741-5. PubMed citation... 

Another ring closure method entails converting the macrolinker intermediate into the corresponding di-oxazolone by refluxing with isobutyryl chloride and then reacting with 1,2-diamine-4-acetamide dihydrobromide as illustrated in Eq. 1 and discussed by the author. 

Di-iso-butyryl Peroxide (called Diisobutyryl-peroxyd in Ger), (CH3)2CH.CO.OO.CO.CH(CH3)2 mw 174.19, O 36.74% gas, dec vigorously at 110-20° (20° higher than the n-butytyl deriv) when heated in a tube (Ref 2) was prepd by reacting isobutyryl chloride with Na peroxide in cold eth or petr eth (Ref 1). Smid Szwarc (Ref 3) studied its kinetics of decompn Refs 1) Beil 2, 653l 2) A.E. Oxford, JCS... 

IbOpamine, 2 Methylpropanoic acid 4-[2-(methyf-amino)ethyl]-l,2-phenylene ester 4-[2-(methylammo)ethylj-ophenylene diisobutyrate N-methyldopamine diisobutyric ester 3,4-di-o-isobutyryl epinine, C H NO mol wt... 

The exudate of the glandular trichomes of Solanum ber-thaultii are effective against aphids and similar insect pests. One part of the defense involves the immobilization of the insects in the exudate which hardens (Harbome, 1989). This exudate proved to be a mixture of sucrose esters, of which 3,4-di-0-isobutyryl-6-C>-caprylsucrose is a major component. These compounds also appear to provide resistance to potato blight (Harbome, 1989). A similar series of compounds is found in the trichomes of other solanaceous plants of the genera Datura, Lycopersicon, Nicotiana, and Petunia. A series of esters of sucrose with -p-coumaric acid (such as 104) and acetate from Prunus maximowiczii proved to be responsible for the very bitter taste of the fruits (Shimazaki et al., 1991) (Fig. 15.18). 

Obtained by reaction of isobutyryl chloride with 3,5-di-methylanisole in the presence of aluminium chloride in boiling carbon disulfide [7276,8110], (70-75%) [7052]. 

Preparation by acylation of 2,6-di-tert-butylphenol with isobutyryl chloride in the presence of aluminium chloride [8232]. 

B. Protected nucleosides, such as 5 -0-di-/ -methoxytrityl-2 -deoxythy-midine (Fig. la), 5 -0-di-p-methoxytrityl-Af -benzoyl-2 -deoxycytidine (Fig. lb), 5 -0-di-p-methoxytrityl-A -benzoyl-2 -deoxyadenosine (Fig. Ic), and 5 -0-di-p-methoxytrityl-N -isobutyryl-2 -deoxyguanosine (Fig. Id) ... 

---