Esters diisopropyl

Chemical Designations - Synonyms Diisopropyl percarbonate Diisopropyl peroxydicarbonate Isopropyl peroxydicarbonate Peroxydicarbonic acid, bis (1-methylethyl) ester Peroxydicarbonic acid, diisopropyl ester Chemical Formula C3H7OOCOOCOOC3H7. 

For the synthesis of a suitable arylboron compound, usually an aryl halide is converted to an aryllithium or aryl Grignard derivative, and then reacted with a trialkoxyborane to yield an arylboronic ester, e.g. the phenylboronic acid diisopropyl ester 13 from bromobenzene 11 ... 

Diisopropyl methylphosphonate is a colorless liquid at normal temperatures. It is also known as methyl-,bis-(l-methyl-ethyl)ester, phosphonic acid, and methyl-diisopropyl ester. 

It has been reported that the geometry of olefins obtained from the reaction of dialkyl l-(ethoxycarbonyl)ethylphosphonates and a-phenylpropionaldehyde can be controlled by choice of the phosphonate ester alkyl groups diisopropyl ester gives (E), while dimethyl ester gives (Z). This has now been confirmed for the... 

During reflux of a mixture to produce malonoyl chloride, vivid sparks were seen in the flask, and the reaction was closed down without mishap. No explanation is apparent, but the diisopropyl ester structure appears likely to be susceptible to autoxidation on storage, and peroxides may possibly have been involved in the phenomenon. 

The tartrate (either diethyl or diisopropyl ester) stereoisomer that is chosen depends on the specific enantiomer of the epoxide desired. 

The tunneling distance, Rq, for various reactions of this type was obtained by fitting the static quenching of Ru(II)(LL)3 by various concentrations of D to the Perrin equation. R was found to depend on reaction exothermicity and to reach 20 A for the reaction between Ru(II)(ester)3 and TMPD (ester = 4,4/-diisopropyl ester 2,2 bipyridine). 

Mercaptobenzimidazole, 30, 56 2-Mercaptobenzoxazole, 30, 57 Mercuric cyanide, 32, 31 Methallyl chloride, 32, 90 Methanephosphoric acid, diisopropyl ESTER, 31, 33 Methanesulfonic acid, 30, 58 Methanesulfonyl chloride, 30, 58 Methanol, 30, 31 32, 79 Methone, 31, 40... 

The (E) and (Z) forms of the vinylboron compounds 278 and 279 can be prepared by hydroboration of alkynes and haloalkynes, and their reactions with the (E)- or (Z)-vinyl iodides or bromides 280 and 281 proceed without isomerization the four possible isomers 282-285 can be prepared in high purity. However, for the efficient preparation of the (Z,Z)-dienes 287, the diisopropyl ester of (Z)-alkenylboronic acid 286 should be used. Other boron compounds give poor yields... 

MALONIC ACID, (1.3-DITHI0L-2-YLIDENE)-, DIISOPROPYL ESTER... 

Fig. 16.16. Stereoselective preparations of cis-alkenyl-boronic acids and the corresponding diisopropyl ester starting with cis-bromoalkenes. The first step involves a Br/Li exchange to form the alkenyl-lithium compound B. This organolithium compound is subsequently transmetalated to give complex C by using B(0/Pr)3.

We applied these optimized conditions with aryl bromide 38. Bromide 38 was prepared from isophthalic acid by bromination in the meta position with concentrated sulfuric acid, bromine and silver sulfate to give compound 37,34 which was converted to the isopropyl ester with HMPA and isopropyl iodide (Scheme 14). When 5-bromo-isophthalic acid diisopropyl ester 38 was treated with diphenethylamine only starting material and reduced aryl compound... 

Diphenethylamino-isophthalic acid diisopropyl ester (39) (Table 3, entry 9)... 

To a solution of 5-diphenethylamino-isophthalic acid diisopropyl ester 39 (0.129 g, 0.272 mmol) in isopropyl alcohol/H20 mixture (3 1) (4.00 mL) was added LiOH.H20 (0.0870 g, 2.07 mmol) and the solution was stirred at room temperature for 48 h. The volatile components were removed under reduced pressure and residue was taken up in H20 (15.0 mL) and acidified with 1.00 N HC1 (5.00 mL). The suspension was stirred for 30 min and the residue was collected by filtration and dried in the hood overnight to give 0.102 g of 40 as a white solid in 96% yield. 

Diphenylphosphano-methan- -diethylester El, 166 1-Diphenylphosphinyl-ethan- -diisopropylesterE2,43 Dipbenylphosphinyl-phenyl-methan- -diisopropyl-ester E2, 43... 

DIISOPROPYL METHYLPHOSPHONATE (Methanephosphonic acid, diisopropyl ester)... 

Human and animal lung cells have been used successfiiUy to model the toxic effects of inhaled SM. The epithelia of the upper respiratory tract are the primary targets of inhaled SM. The potential of monoisopropyl esters and diisopropyl esters of glutathione as cytoprotectants in the human upper respiratory tract cell lines, BEAS-2B and RPMI 2650, was... 

Hydroxy- -2,2-dioxid E17b, 1225 (9-Oxa-3-thia-bicyclo[6.1. Ojno-nan-3,3-dioxid/LiR) Thiooxalsaure -O.O-diisopropyl-ester E5, 796 (CN - CS-OR)... 

Ethanol l,l-Bis-[diethoxyphos-phoryl]- XII/1, 481 Pyrophosphorsaure -P,P-diethylester-P, F-diisopropyl-ester XII/2, 906 -P,P-diethylester-P, P -dipropyl-ester XII/2, 911... 

SYNS DFP DIFLUPYL DIFLUROPHATE DIISOPROPOXYPHOSPHORYL FLUORIDE DIISOPROPYL FLUOROPHOSPHATE 0,0-DIISOPROPYL FLUOROPHOSPHATE DIISOPROPYL FLUOROPHOSPHONATE DIISOPROP i LFLUORO-PHOSPHORIC ACID ESTER DIISOPROPYLFLUOR-PHOSPHORSAEUREESTER (GER.VIAN) DIISOPROPYL PHOSPHOFLUORIDATE DIISOPROPYL PHOSPHOROFLUORIDATE 0,0 -DIIS0PR0PYL PHOSP-HORYL FLUORIDE DYFLOS FLOROPRYL FLUOPHOSPHORIC ACID, DIISOPROPYL ESTER FLUORODIISOPROPYL PHOSPHATE FLUOROPRYL... 

PHOSPHOROFLUORIDIC ACID see PHJ250 PHOSPHOROFLUORIDIC ACID, DIISOPROPYL ESTER see IRFOOO... 

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