Detail of "7342-82-7"

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Photochemistry of heterocyclic compounds

Photochemistry of heterocyclic compounds.Some chemicals with cas registry numbers like 7342-82-7 are also used. VII. Photochemical reaction of 2,5-diphenyl-1,3,4-oxadiazole with benzo[b]thiophenes. Oe, Koji; Tashiro, Masashi; Tsuge, Otohiko (Res. Inst. Ind. Sci., Kyushu Univ., Fukuoka, Japan). Bull. Chem. Soc. Jpn., 50(12), 3281-7 (English) 1977. CODEN: BCSJA8. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) Irradn. of 2,5-diphenyloxadiazole (I) with benzothiophene II (R = H) gives 3-benzoylbenzothiophene III (R1 = PhCO), its benzoylhydrazone [III; R1 = PhC(:NNHCOPh)], and/or the oxadiazepine IV; the yields depend on the nature of solvents. With Ph2CO as a sensitizer, the photochem. reaction of I with II (R = H) forms the [2+2] cycloadduct V. IV is photochem. dissocd. to I and II (R = H). In the case of 2-methylbenzothiophene VI, 3-benzoyl-2-methylbenzothiophene benzoylhydrazone is formed, and with Ph2CO as a sensitizer the [2+2] cycloadduct II (R = Me) is obtained. In the absence or presence of Ph2CO, however, irradn. of I with 3-methylbenzothiophene gives the [2+2] cycloadduct VII. The photochem. reaction of I with II (R = H, Me) in the presence of iodine gives the corresponding 3-benzoylbenzothiophene and benzoylhydrazone, resp. In the case of 3-methylbenzothiophene, however, the [2+2] cycloadduct VIII is formed, together with 2-benzoyl-3-methylbenzothiophene.Some commonly used reagents like 7342-82-7 is used in this experiment. ..

Photochemistry of heterocyclic compounds

Photochemistry of heterocyclic compounds.Some chemicals with cas registry numbers like 7342-82-7 are also used. VII. Photochemical reaction of 2,5-diphenyl-1,3,4-oxadiazole with benzo[b]thiophenes. Oe, Koji; Tashiro, Masashi; Tsuge, Otohiko (Res. Inst. Ind. Sci., Kyushu Univ., Fukuoka, Japan). Bull. Chem. Soc. Jpn., 50(12), 3281-7 (English) 1977. CODEN: BCSJA8. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) Irradn. of 2,5-diphenyloxadiazole (I) with benzothiophene II (R = H) gives 3-benzoylbenzothiophene III (R1 = PhCO), its benzoylhydrazone [III; R1 = PhC(:NNHCOPh)], and/or the oxadiazepine IV; the yields depend on the nature of solvents. With Ph2CO as a sensitizer, the photochem. reaction of I with II (R = H) forms the [2+2] cycloadduct V. IV is photochem. dissocd. to I and II (R = H). In the case of 2-methylbenzothiophene VI, 3-benzoyl-2-methylbenzothiophene benzoylhydrazone is formed, and with Ph2CO as a sensitizer the [2+2] cycloadduct II (R = Me) is obtained. In the absence or presence of Ph2CO, however, irradn. of I with 3-methylbenzothiophene gives the [2+2] cycloadduct VII. The photochem. reaction of I with II (R = H, Me) in the presence of iodine gives the corresponding 3-benzoylbenzothiophene and benzoylhydrazone, resp. In the case of 3-methylbenzothiophene, however, the [2+2] cycloadduct VIII is formed, together with 2-benzoyl-3-methylbenzothiophene.Some commonly used reagents like 7342-82-7 is used in this experiment. ..