geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Photoreactions of phthalimide thietanes fission of the thietane ring and formation of 1 2 dithianes


, : Photoreactions of phthalimide thietanes fission of the thietane ring and formation of 1 2 dithianes. Heterocycles (Tokyo) 26(1): 147-156

Photolysis of N-methylmonothiophthalimide (1) in the presence of thietane (4) gave 1,2-dithiane (5) and 1,3-dithiane (6). The formation of 1,2-dithianes in the photoreaction of 1 with styrene derivatives (2) is explained in terms of the intermediacy of the phthalimide-thietanes. Photolysis of the thietane ring is also described.

US$29.90


Other references

Low, C.; Connor, E.F., 2003: Birds have no impact on folivorous insect guilds on a montane willow. We examined the impact of avian predators on the community of insects feeding on Lemmon's willow, Salix lemmonii, at Carman Valley, California. Salix lemmonii supports a diverse assemblage of insect species that feed in either a concealed or...

Wang, C.J.h; Su, M.H.an; Liang, S.C.i; Changchein, Y.C.ing, 1993: Permeation studies of clonidine through skins and different artificial membranes. This research is a preliminary study of the development of transdermal clonidine delivery system. The solubility of clonidine in water was determined as 2.052 +- 0.016 mg/ml at 37 degree C in this study. With this solubility and flux, the permeabi...

Ornatskii, V., 1952: Histological investigation of the sympathetic ganglia in rabbits in repeated homoplastic transplantation of the adrenals. Arkhiv Patologii 14(2): 83-84

Nishino, T.; Honda, Y.; Yonezawa, Y.; Lahiri, S., 1980: Acute hypotension and its effect on respiration. To study the effect of acute hypotension on the [cat] central respiratory control system, changes in ventilation were investigated during steady-state hypotension induced by occlusion of the inferior vena cava under hyperoxic condition. Acutely in...

Balbir Singh, 1981: Genetic advancement in Nali through selection and cross breeding Nali with Rambouillet and Russian Merino towards apparel wool. Data were recorded on Nali purebreds during 1969-78 and on Rambouillet X Nali and Soviet Merino (SM) X Nali crossbreds during 1972-78. For Nalis, year of birth, season of birth of lambs, and dam's weight at lambing significantly affected birt...

Lawrence, D.; Bell, T.; Barraclough, T.G., 2016: The Effect of Immigration on the Adaptation of Microbial Communities to Warming. Theory predicts that immigration can either enhance or impair the rate at which species and whole communities adapt to environmental change, depending on the traits of genotypes and species in the source pool relative to local conditions. These re...

Weidemann, F.; Störk, S.; Herrmann, S.; Ertl, G.; Niemann, M., 2012: The various forms of left ventricular hypertrophy: diagnostic value of echocardiography. Left ventricular hypertrophy is a non-specific physiological or maladaptive cardiac response to a large array of stimuli mediated by exercise and numerous cardiac and systemic diseases. The precise characterization and quantification of left ventr...

Sulariu, S., 1971: Pastoral beekeeping results (Rumania). Pastoral beekeeping in the alpine area is described. First, only the very strong families were transferred to the respective areas, especially over long distances. The rest were left on the spot, for hayfield gatherings. Best results were obtained...

Decuypere, E.; Leenstra, F.; Huybrechts, L.M.; Feng, P.Y.; Arnouts, S.; Herremans, M.; Nys, M., 1993: Selection for weight gain or food conversion in broilers affects the progesterone production capacity of large follicles in the reproductive adult breeders. Selection for leanness by selecting for food conversion (FC-line) or selection for rapid growth and, thus, a concomitant fat increase (GL line) has also resulted in a lower egg laying rate of the at birds. In birds of both lines that were effectiv...

Sterf, B.; Streit, B., 1989: Cadmium and lead concentration in freshwater limpets. Kuttler, W [Editor] [Proceedings of the Society for Ecology] Verhandlungen Gesellschaft fuer Oekologie : 455-459