1.5- dimethyl-2-hydroxymethyl

Aus Pyridoxal wird unter Erhalt der Alkohol-Gruppe 3-Hydroxy-2,4-dimethyl-5-hydroxymethyl-pyridin erhalten (s.a. S. 628)12 ... 

Chromanone, 3-acetamido-2-methyl-reduction, 3, 729 Chromanone, 3-amino-synthesis, 3, 734 Chromanone, 3-arylidene-thermoisomerization, 3, 722 Chromanone, 3-benzylidene-thermolysis, 3, 728 Chromanone, 3-bromo-2-hydroxy-benzofuran from, 3, 729 Chromanone, 6,8-dimethyl-hydroxymethylation, 3, 731 Chromanone, 2,3-epoxy-as synthon, 3, 735... 

Phenol 2-Trimethylsilyl- XIII/5, 42 Silan Dimethyl-hydroxymethyl-phenyl- XIII/5, 74... 

Propylene Urea Resins. In similat fashion to ethyleneurea, dimethyl-olpropyleneurea [3270-74-4] [l,3-bis(hydroxymethyl)tetrahydro-2-(m)-pyrimidinone] is the basis of propyleneurea—formaldehyde resin [65405-39-2], Its preparation is from urea, 1,3-diaminoptopane [109-76-2] and formaldehyde. 

In some instances the solvents may react with the substrate during the irradiation. For example, 3,6-dichIoropyridazine, when irradiated in acidified methanol, gives a mixture of raonoraethylated (56), dimethylated (57) and hydroxyraethylated (58) compounds. Further transformation of the hydroxymethyl compound (58) results in the formation of y-Iactones (59) and succinates (60 Scheme 20). 

The concept and use of free radical attack on pyrimidines has been little developed. However, pyrimidine does react slowly with p-nitrobenzenediazonium chloride to yield some 2- and 4-p-nitrophenylpyrimidines (51JCS2323) in addition, 2,4-and 4,6-dimethyl-pyrimidine are converted by hydroxymethylene radicals (from ammonium peroxydisul-fate/methanol) into 6- and 2-hydroxymethyl derivatives, respectively (77H(6)525). Certain bipyrimidine photoproducts appear to be formed from two similar or dissimilar pyrimidinyl radicals (see Section 2.13.2.1.4). 

Indole, 3-hydroxymethyl-2-phenyl-stability, 4, 272 Indole, I-hydroxy-2-phenyl-synthesis, 4, 363 Indole, 2-iodo-synthesis, 4, 216 Indole, 3-iodo-reaetions, 4, 307 synthesis, 4, 216 Indole, 2-iodo-l-methyl-reaetions, 4, 307 Indole, 2-lithio-synthesis, 4, 308 Indole, 3-lithio-synthesis, 4, 308 Indole, 2-mereapto-tautomerism, 4, 38, 199 Indole, 3-mercapto-tautomerism, 4, 38, 199 Indole, 3-methoxy-synthesis, 4, 367 Indole, 5-methoxy-oxidation, 4, 248 Indole, 7-methoxy-2,3-dimethyl-aeetylation, 4, 219 benzoylation, 4, 219 Indole, 5-methoxy-l-methyl-reduetion, 4, 256 Indole, 5-methoxy-l-methyl-3-(2-dimethylaminoethyl)-reaetions... 

Pterin, 5-formyl-6,7-dimethyl-5,6,7,8-tetrahydro-structure, 3, 281 Pterin, 6-hydroxymethyl-reactions, 3, 304 structure, 3, 273 Pterin, 7-hydroxymethyl-synthesis, 3, 311... 

Pterin, 6-hydroxymethyl-7,7-dimethyl-7,8-dihydro-bacteriostatic activity, 3, 325 Pterin, 1-methyl-hydrolysis, 3, 294 5-oxide... 

Dimethyl peroxide Diethyl peroxide Di-t-butyl-di-peroxyphthalate Difuroyl peroxide Dibenzoyl peroxide Dimeric ethylidene peroxide Dimeric acetone peroxide Dimeric cyclohexanone peroxide Diozonide of phorone Dimethyl ketone peroxide Ethyl hydroperoxide Ethylene ozonide Hydroxymethyl methyl peroxide Hydroxymethyl hydroperoxide... 

Demethylation of trequinsin (3) with a 65 35 mixture of AcOH and 48% HBr at 115 °C for 3 h gave mainly 10-hydroxyl derivatives 148 (R = r = H), which was accompanied by traces of its 9-hydroxyl and 9,10-dihydroxy derivatives. In boiling 48% HBr for 2 h its 9,10-dihydroxy derivative formed in 63% yield (98IJC(B)1). 9-Methoxy group of 3 and that of its 2-[(2,6-dimethyl-4-carboxyphenyl)imino] derivative 178 (R = COOH) was selectively demethylated by the treatment with 60% NaOH and EtSH in HMPA. Treatment of 3 with pyridine HCl in boiling pyridine for 20 min afforded its 9,10-dihydroxy-3-desmethyl derivative in 65% yield. 4 -Hydroxymethyl... 

Dimethyl-4-hydroxymethyl-1.3-dioxolane Sodium hydride Hydrogen chloride... 

Step G 4-fOrtho-(2, 3 -Dihydroxypropyloxycarbonyl)-Phenyl]-Amino-8-Trifluoromethyl-quinoHne Acetonide — 100 cc of toluene were added to 80 cc of 2,2-dimethyl-4-hydroxy-methyl-1,3-dioxolane and the toluene was distilled off under reduced pressure to eliminate the water present. To the anhydrous 2,2-dimethyl-4-hydroxymethyl-1,3-dioxolane thus obtained, 0.25 gram of an oily 50% suspension of sodium hydride and then 21.3 grams of 4-... 

Chemical Name 3-Pyridine carboxylic acid compounded with 3,7-dihydro-7-[2-hydroxy-3-[(2-hydroxymethyl)methylamino] propyl] -1,3-dimethyl-1 H-purlne-2,6-dlone(1 1)... 

Draw the structure of Kodel, a polyester prepared by heating dimethyl 1,4-benzenedicarboxylate with l,4-bis(hydroxymethyl)cvclohexane. 

Ahnliche Eigenschaften wie Lithiumboranat besitzt auch Natrium-trimethoxy-hydri-do-borat1, mit dem z.B. bei 4a,9/ -Dimethyl-8/j-carboxymethyl-4/i,7a-dimcthoxycarbo-nyl-dekalin in 1,2-Dimethoxy-athan bei 85° die sekundare Methoxycarbonyl-Gruppe se-lektiv unter Bildung von 4a,9(i-Dimethyl-7a.-hydroxymethyl-8fi-carboxymethyl-4fi-methoxycarbonyl-dekalin (98°/, d.Th.) reduziert wird2 ... 

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