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Dive into the research topics where Roman Loza is active.

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Featured researches published by Roman Loza.


Tetrahedron Letters | 1979

The photosensitized rearrangement of aryl-substituted tricyclo[2.2.0.02,6]hexanes to bicyclo[3.1.0]hex-2-enes

Albert Padwa; Thomas J. Blacklock; Roman Loza

Abstract The triplet sensitized irradiation of 3-allyl-diaryl-substituted cyclopropenes to bicyclo[3.1.0]hex-2-enes proceeds via an intramolecular [2+2]-cycloaddition followed by a subsequent rearrangement of the initially formed tricyclo[2.2.0.0 2,6 ]hexane skeleton.


Journal of Organic Chemistry | 1982

Mechanistic aspects of the silver(I)-promoted rearrangement of cyclopropene derivatives

Albert Padwa; Thomas J. Blacklock; Roman Loza


Journal of the American Chemical Society | 1981

Silver-promoted isomerizations of some cyclopropene derivatives

Albert Padwa; Thomas J. Blacklock; Roman Loza


Journal of Organic Chemistry | 1978

Photochemical transformations of small ring compounds. 95. The problem of regioselectivity in the photochemical ring-opening reaction of 3-phenyl- and 3-vinyl-substituted cyclopropenes to indenes and 1,3-cyclopentadienes

Albert Padwa; Thomas J. Blacklock; Daniel Getman; Naoto Hatanaka; Roman Loza


Journal of Organic Chemistry | 1980

Photochemical transformations of small ring compounds. 112. Photochemistry of cyclopropene derivatives. Formation and intramolecular trapping reactions of vinylcarbenes

Albert Padwa; Thomas J. Blacklock; Roman Loza; Richard P. Polniaszek


Journal of the American Chemical Society | 1980

Photochemical transformation of small ring compounds. 114. Photochemistry of cyclopropene derivatives. 17. Competition between side-chain fragmentation and ring opening

Albert Padwa; Thomas J. Blacklock; Diana M. Cordova; Roman Loza


Journal of Organic Chemistry | 1981

Sigmatropic indenyl rearrangements induced by electronic excitation

Albert Padwa; Steven Goldstein; Roman Loza; Mitchell Pulwer


Tetrahedron Letters | 1977

On the mechanism of the photochemical rearrangement of 3-phenyl substituted cyclopropenes to indenes

Albert Padwa; Roman Loza; Daniel Getman


Journal of the American Chemical Society | 1981

Photochemical transformations of small ring compounds. 116. Photochemistry of cyclopropene derivatives. Synthesis of the tricyclo[2.2.0.02,6]hexane ring system via a photosensitized [2 + 2] cycloaddition reaction

Albert Padwa; Thomas J. Blacklock; Diana M. Cordova; Roman Loza


ChemInform | 1980

PHOTOCHEMICAL TRANSFORMATION OF SMALL RING COMPOUNDS. 114. PHOTOCHEMISTRY OF CYCLOPROPENE DERIVATIVES. 17. COMPETITION BETWEEN SIDE-CHAIN FRAGMENTATION AND RING OPENING

Albert Padwa; Thomas J. Blacklock; D. M. Cordova; Roman Loza

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