S Butyl nitrite

Trimethyl Borate, (CH3)3B03, did not gel any of the NC s Trimethyl Phosphate, (CH3)3P03, gelatinized all three. NC s rapidly and completely Dimethyl Sulfate. (CH3)2S04, gelatinized li and 12% N NC s rapidly and completely, the 13% N NC incompletely Dimethyl Sulfite, (CH3)2S03, gelatinized all three NC s rapidly and completely Butyl Nitrite,... 

Sugamoto and colleagnes have attempted the rednction-nitrosation of the conjn-gated olefins 33 by the nse of f-bntyl nitrite instead of oxygen (Scheme 24). Various olefins such as styrenes, a,-unsaturated carbonyl compounds and a, S,y,5-unsaturated carbonyl compounds were directly converted to the corresponding acetophenone oximes, a-hydroxyimino carbonyl compounds and y-hydroxyimino-a,/S-unsaturated carbonyl compounds in good or moderate yields by rednction-nitrosation with f-butyl nitrite and triethylsilane in the presence of cobalt(II) porphyrin as a catalyst (Scheme 24). 

A protected serine hydrazide was condensed by the azide method to an S-protected tripeptide H-Asn-Cys-Tyr-NHNH-Cbz to form a protected tetrapeptide Boc-Ser-Asn-Cys-Tyr-NHNH-Cbz 1.02 g of N-rerr-butoxycarbonylserine hydrazide (Boc-Ser-NH-NHj) >n DMF containing HCI in dioxane was mixed at -20 °C with reri-butyl nitrite. This mixture containing the azide Boc-Ser-Nj was neutralized with triethylamine, and a solution of 3.4 g asparaginyl-S-(ethylcarbamoyl)cysteinyl-tyrosinyl 2-(benzyloxy-carbonyl)hydrazide trifluoroacetate was added. After 72 hours at 4 °C a simple work-up procedure and precipitation from methanol-petroleum ether yielded 3 g of impure protected retrapeptide hydrazide. It... 

U.S. Consumer Products Safety Commission bans the sale of butyl nitrite. 

In 1988, the U.S. Consumer Products Safety Commission banned the sale of butyl nitrite. But manufacturers kept one step ahead of federal regulatory agencies. Each time a specific formula was banned, the manufacturers would adjust by altering the chemical composition slightly. As of 2002, the newest popper was cyclohexyl nitrite, commonly sold in drug paraphernalia or head shops and adult bookstores as a head cleaner for VCRs. Cyclohexyl is chemically similar to amyl nitrite and butyl nitrite and produces the same effect when inhaled. 

Amyl nitrite s place on the streets has largely been taken by butyl nitrite, a similar chemical with milder effects. These products, sold as room odorizers under such brand names as Locker Room and Rush, are often available at head shops, concerts, raves, and dance clubs. 

Lavi, R., Schwartz-Lavi, D., Bar, I. and Rosenwaks, S. (1987). Directional properties in photodissociation A probe for the symmetry and geometry of excited states of dimethylnitrosamine and ferf-butyl nitrite, J. Phys. Chem., 91, 5398-5402. 

Belladonna (deadly nightshade), 131-34 Benadryl, 146 Benzedrine, 48 Benzene, 126 Benzodiazepines, 74, 76 Betel, 54 Biorhythms, 37 Blood, Benjamin Paul, 790 "Blues," 147 "Blue velvet," 147 Bodybuilding, 148-49 Brecher, Edward M, 214 Brompheniramine (Dimetanc , 146 Broiichodilators, 150—51 "Burn-outs," 167 Burroughs, William S., 16 Butyl nitrite, 130, 131... 

Diazotization of 2-aminopyrazine with nitrous acid in dilute or concentrated sulfuric acid gave 2 hydroxypyrazine (to 67% yield) (86, 477, 720, 818). Many such conversions have been described, mostly using nitrosylsulfuric acid in concentrated sulfuric acid solution. Preparations of hydroxypyrazines from the aminopyrazines are summarized as follows 2-hydroxy-3-methylpyrazine (sodium nitrite in concentrated sulfuric acid-acetic acid) (681), 2Jiydroxy-3,5-dimethylpyrazine (aqueous nitrous acid, then at 60°) (524), 3-hydroxy-2,5-dimethylpyrazine (477), 2,5-diethyl-3-hydroxypyrazine (aqueous nitrous acid) (478), 2-hydroxy-6-phenyl-pyrazine (365a), 24iydroxy-3,5-diphenylpyrazine (nitrous acid in N hydrochloric acid) (524), 3-hydroxy-2,5-diphenylpyrazine (282), 2-s-butyl-3-hydroxy-5-isobutyl-pyrazine (93), 5TS-butyl-3 hydroxy-2-isobutylpyrazine (92, 536), 2,5-di-s-butyl-3-hydroxypyrazine (89, 720), 3-hydroxy-2-isobutyl-5-isopropylpyrazine (103, 525), 2,3-dihydroxypyrazine (from 2 amino-3-hydroxypyrazine) (757, 1055) and its... 

Tenenbein 1992). More important from the perspective of immunomodulation is the abuse of so-called room odorizers or volatile nitrites. These compounds—such as amyl nitrite, butyl nitrite, and isobutyl nitrite (IBN)—produce vasodi-lation of the cerebral vessels, resulting in euphoria (Haverkos and Dougherty 1988) and a reported enhancement in sexual function. Initially used clinically in the treatment of angina pectoris, their use appears to be prevalent in the homosexual community and may be associated with Kaposi s sarcoma (Newell et al. 1984). Use of these compounds has been demonstrated to result in decreased immune function, particularly T-cell-mediated immunity (Dax et al. 1991 Lotzova et al. 1984 Soderberg and Barnett 1991 Ratajczak et al. 1995). The association between inhalants and Kaposi s sarcoma is currently the subject of increased research interest. 

N203 passed into an ice-cooled soln. of tributylacetamide (prepn. s. 127) in glacial acetic acid, allowed to stand at room temp, overnight, and heated 2 hrs. on the steam bath — tributylacetic acid. Y 80%.— The reaction can also be performed with butyl nitrite. (N. Sperber, D. Papa, and E. Schwenk, Am. Soc. 70, 3091 (1948) s. a. F. J. Buckle, R. Heap, and B. C. Saunders, Soc. 1949, 912.)... 

Another electronic method is based on the use of a manometer liquid such a.s butyl glycol that has been made feebly conducting by the. addition of a small quantity of a salt such as sodium nitrite. The current passing at 6—8 V need be only about 10 A with an electronic relay it can be made to switch a current of 10—15 A at 220 V. The controller functions as follows. In one limb of a U-shaped vessel, maintained at a constant temperature, the required control vacuum is established (Fig. 374b). If the same pressure is present in the apparatus connected to the other limb, the contact liquid is at the same level in the two limbs. An increase in pressure in the apparatus causes the liquid in the limb joined to it to fall contact is then made in the other, and an electronic relay starts the pump, which continues to run until contact... 

S)tnthesis of oximes from aryl-conjugated ethylenes could be achieved by cobalt or iron catalysts using borohydride. The system of Co and ethyl nitrite and ammonium borohydride rather than sodium borohydride was more optimal with most substrates. The reaction with Fe and tert-butyl nitrite gave the oxime products in moderate to high yield using sodium borohydride (eq 44). ... 

Before we talk about this group of aromatic Sfjl reactions in more detail, let s consider how to make the diazonium salt. The reagent we need is the reactive nitrogen electrophile NO. You met NO in Chapter 20, but to remind you, it forms when the nitrite anion (usually sodium nitrite) is treated with acid at around 0 °C. Protonation of nitrite gives nitrous acid, HONO protonation again gives a cation, which can lose water to form NO. Butyl nitrite (or other alkyl nitrites) can also be used as a source of NO. ... 

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