2-methyl-allyl-isocyanate

Methyl-allyl-isocyanate 388 was prepared from methallylamine 387 with triphosgene [266]. 

Although there are many reports of reactants to achieve dimensional stabilization by ester bonding with hydroxyl groups of the wood components, an additional increase in biological resistance has been studied only for acetic anhydride [1-12] and several isocyanates [13-15] such as methyl isocyanate and allyl isocyanate. 

In the reaction of wood hydroxyls with isocyanates, a nitrogen-containing ester is formed. A limited reduction of fungal attack was reported earlier in beechwood modified with diisocyanate (13). Considerably more decay protection than acetylation has been shown in the methyl and allyl isocyanate modifications. Little decay was evident in methyl isocyanate-modified southern pine at WPGs between 14% and 19% in laboratory assay using G. trabeum. 

Allyl isothiocyanate treatment also gave a high decay resistance of wood comparable to methyl and allyl isocyanates, but the main reaction appaeared to be polymerization, which left isothiocyanate groups intact [15]. 

METHYL ALLYL ALCOHOL (513-42-8) Forms explosive mixture with air (flash point 92°F/33°C). Reacts, possibly violently, with oxidizers, acetaldehyde, alkalineearth and alkali metals, strong acids, strong caustics, aliphatic amines, benzoyl peroxide, chromic acid, chromium trioxide, dialkylzincs, dichlorine oxide, ethylene oxide, hydrogen peroxide, hypochlorous acid, isocyanates, isopropyl chloroearbonate, lithium tetrahydroaluminate, nitric acid, nitrogen dioxide, pentafluoroguanidine, phosphorus pentasulfide, perchloric acid, tangerine oil, triethylaluminum, triisobutylaluminum. 

Allyl isocyanate n-Butyl isocyanate t-Butyl isocyanate 3-Chloro-4-methyl phenyl isocyanate 2-Chlorophenyl isocyanate Cyclohexyl isocyanate 2,3-Dichlorophenyl isocyanate 2,4-Dichlorophenyl isocyanate 2,5-bichlorophenyl isocyanate 2,6-Dichlorophenyl isocyanate 3,4-Dichlorophenyl isocyanate Ethyl isocyanate Hexyl isocyanate Isobutyl isocyanate Isopropyl isocyanate Methacrylonitrile Methoxymethyl isocyanate n-Propyl isocyanate m-Tolyl isocyanate o-Tolyl isocyanate p-Tolyl isocyanate intermediate, aminimides 1,1-Dimethylhydrazine intermediate, ampicillin Acetamide... 

While simple unactivated cyclopropanes have yet to be used for [3 + 2] cycloaddition, Tsuji and coworkers have developed a palladium-catalyzed cycloaddition reaction using electron-deficient vinylcy-clopropanes. Thus, vinylcyclopropane (43) undergoes smooth cyclization with methyl acrylate in the presence of a palladium catalyst to give vinylcyclopentane (44) as a mixture of diasteroisomers (equation 35). The cycloaddition probably proceeds through the zwitterionic ( ir-allyl)palladium intermediate (45) and its stepwise reaction with the acrylate (equation 36). Enones such as cyclopentenone and methyl vinyl ketone will also react. Reaction of the same vinylcyclopropane with phenyl isocyanate produces vi-nyllactam (46) (equation 37).Some cycloaddition reactions with (cyclopropyl)Fp complexes have also been reported. However, the substrates are limited to SO2 and TCNE and the yields have not been disclosed (equation 38). ... 

The use of trichloroacetyl isocyanate to generate carbamates in situ can be used to identify methyl groups adjacent to a tertiary alcohol (downfield shift of 0.29—0.44 p.p.m.) and to assign the geometry of double bonds in allylic alcohols. Similarities in the n.m.r. and infrared spectra of monoterpenoids may be valuable in identifying new sesquiterpenoid analogues. ... 

The mercury(II)-catalyzed equilibration of diastereomeric carbamates 3b, prepared from methyl m-l-(l-naphthyl)ethyl isocyanate, leads to a mixture of 3b and 4b. Separation of 4b, followed by repetitive equilibration of the unwanted 3 b, provides a new method for transferring racemic allylic alcohols into a single enantiomer431. Alcohol 4c was used in the synthesis of enantiomerically pure prostanoids. 

N,N DIPROP YL-4-TRIFLUORO-METHYL-2,6-DINITROANILINE (1582-09-8) Ci3HjsF3N304 Combustible solid (flash point >185 F/>85°C oc Fire rating 1). May react violently with barium, potassium, sodium. Incompatible with organic anhydrides, acrylates, alcohols, aldehydes, alkylene oxides, substituted allyls, cellulose nitrate, cresols, caprolactam solution, epichlorohydrin, ethylene dichloride, isocyanates, ketones, glycols, nitrates, phenols, vinyl acetate. Exothermic decomposition with maleic anhydride. May increase the explosive sensitivity of nitromethane. Reacts with nitroalkanes, forming explosive products. As a dinitroaniline derivative, the extremes of heat (do not store above 90°F/32°C), mechanical shock, and fnction might be... 

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