Detail of "19446-68-5"

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Photochemistry of the azoalkanes 2,3-diazabicyclo[2: Photochemistry of the azoalkanes 2,3-diazabicyclo[2.2.1]hept-2-ene and spiro[cyclopropane-7,1'-[2,3]-diazabicyclo[2.2.1]hept-2-ene]: on the questions of one-bond vs. two-bond cleavage during the denitrogenation, cyclization vs. rearrangement of the 1,3-diradicals and double inversion. Adam, Waldemar; Oppenlaender, Thomas; Zang, Gerald (Inst. Org. Chem., Univ. Wuerzburg, Wuerzburg D-8700, Fed. Rep. Ger.). J. Org. Chem., 50(18), 3303-12 (English) 1985. CODEN: JOCEAH. ISSN: 0022-3263. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) Thermolysis and 350- and 185-nm photolyses of the title compds. (I; R = H, R2 = CH2CH2) were examd. The configuration of the denitrogenated products II and III was detd. by deuteration. Whereas thermal 350-nm photochem. denitrogenation of I (R = H) led to >99% II with preferential double inversion, the triplet-sensitized photolysis caused nearly complete stereoequilibration.Chemical with cas number 19446-68-5 also plays role. These and other stereochem. results with both I were discussed in terms of 1- vs. 2-bond cleavage processes leading to diazenyl or 1,3-cyclopentanediyl radicals. A Salem diagram was helpful in rationalizing the mechanism.Except for chemicals metioned above, 4233-33-4 is also used. ..