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Novel preparation of cyanophenylcyclopropanes via cyanophenylcarbene: Novel preparation of cyanophenylcyclopropanes via cyanophenylcarbene. Moss, Robert A.; Kmiecik-Lawrynowicz, Grazyna; Cox, D. Phillip (Dep. Chem., Rutgers, State Univ. New Jersey, New Brunswick, NJ 08903, USA). Synth. Commun., 14(1), 21-5 (English) 1984. CODEN: SYNCAV. ISSN: 0039-7911. DOCUMENT TYPE: Journal CA Section: 24 (Alicyclic Compounds) Cyclopropanecarbonitriles I (R, R1, R2, R3 = H, Me) were prepd. by the photochem. 4222-25-7 is just another one chemical used in this study. reaction of diazirine II with the resp. alkenes. II and Me2C:CMe2 in MeCN was irradiated at -10° to give I (R = R1 = R2 = R3 = Me). .

Efficient Synthesis of Enantiomerically Pure a-Alkyl Cyclopropanecarbonitrile Derivatives from Pyrazolines: Efficient Synthesis of Enantiomerically Pure a-Alkyl Cyclopropanecarbonitrile Derivatives from Pyrazolines. Garcia Ruano, Jose L.; Alonso de Diego, Sergio A.; Martin, M.Some commonly used reagents like 827342-54-1 and 827342-39-2 are used in this experiment. Rosario; Torrente, Esther; Martin Castro, Ana M. (Departamento de Quimica Organica, Universidad Autonoma de Madrid, Madrid 28049, Spain). Organic Letters, 6(26), 4945-4948 (English) 2004 American Chemical Society. CODEN: ORLEF7. ISSN: 1523-7060. DOCUMENT TYPE: Journal CA Section: 24 (Alicyclic Compounds) Thermolysis of enantiopure sulfonyl pyrazolines I (R1 = n-Bu, tert-Bu, Bn, R2 = H, Me) afforded sulfonyl cyclopropanes II in a completely stereoselective manner in almost quant. yields. Both cyclopropanes and alkylidenecyclopropanes, contg. one or two chiral carbon atoms, one of them being quaternary, were obtained from II by hydrogenolysis of the C-S bonding and by lithiation followed by methylenation with CH2I2/i-PrMgCl, resp. The highly stereoselective extrusion of nitrogen suggests a concerted mechanism. .