3-Isopropoxy-4-(tri-n-butylstannyl)-3-cyclobutene-1,2-dione is used as pharmaceutical intermediate.
Lanny S.Liebeskind; Richard W.Fengl. 3-Stannylcyclobutenediones as nucleophilic cyclobutenedione equivalents. Synthesis of substituted cyclobutenediones and cyclobutenedione monoacetals and the beneficial effect of catalytic copper iodide on the Stille reaction. J. Org. Chem. 1990, 55, (19),5359-5364
Lanny S.Liebeskind; Marvin S.Yu; Richard H.Yu; Jianying Wang; Karl S.Hagen. 4,4'-Bi(cyclobutene-1,2-diones): bisquaryls. J. Am. Chem. Soc. 1993, 115, (20),9048-9055
Dichiarazioni di rischio (UE): H301-H312-H315-H319-H372
Toxic if swallowed. Harmful in contact with skin. Causes skin irritation. Causes serious eye irritation. Causes damage to organs through prolonged or repeated exposure.
Dichiarazioni precauzionali: P260-P201-P280-P304+P340-P405-P501a
Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. Wear protective gloves/protective clothing/eye protection/face protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.