Cookies disclaimer

Estoy de acuerdo utilizamos cookies para mejorar la experiencia de navegación del usuario y para estudiar cómo se utiliza nuestro sitio web. si navega por nuestro sitio web, estará aceptando el uso de las cookies en las condiciones establecidas en la presente política de cookies. esta política puede ser actualizada, por lo que le invitamos a revisarla de forma regular

503-38-8 - Trichloromethyl chloroformate, 98% - Chloroformic acid trichloromethyl ester - Diphosgene - A17444 - Alfa Aesar

A17444 Trichloromethyl chloroformate, 98%

Número CAS
503-38-8
Nombre Alternativo
Chloroformic acid trichloromethyl ester
Diphosgene

Tamaño Precio ($) Cantidad Disponibilidad
10g 41,80
50g 161,00
250g 553,00
Añadir al carrito Añadir al presupuesto al por mayor Ver artículo

Trichloromethyl chloroformate, 98%

MDL
MFCD00015553
EINECS
207-965-9

Propiedades químicas

Fórmula
C2Cl4O2
Peso molecular
197.83
Punto de fusión
-57°
Punto de ebullición
128°
Punto de inflamabilidad
>110°(230°F)
Densidad
1.640
Índice de refracción
1.4570
Sensibilidad
Moisture Sensitive
Solubilidad
Miscible with ethanol, ether and benzene. Immiscible with water.

Aplicaciones

Trichloromethyl chloroformate is used as a reagent in the synthesis of organic compounds. It serves as a source of phosgene used in some laboratory preparations. Also, it is used as a reactant for the synthesis of cyclic carbamimidates, N-alkenyl and cycloalkyl carbamates and prostate-specific membrane antigen-targeted anticancer prodrugs. In addition, it is involved in the preparation of an erythromycin A derivatives and antibody-drug conjugates. It is utilized in the conversion of amines, carboxylic acids, formamides in to isocyanates, acid chlorides and isocyanides respectively.

Notas

Special handling precautions required. View MSDS prior to purchase. MSDS are available online at www.alfa.comStore in a cool place. Light and heat sensitive. Incompatible with strong oxidizing agents and bases.

Referencias documentales

Convenient replacement for phosgene in many reactions, for example:

Conversion of amines to isocyanates: J. Org. Chem., 41, 2070 (1976); Org. Synth. Coll ., 6, 715 (1988). For aliphatic amines, best results were obtained in the presence of the hindered amine 1,8-Bis(dimethyl­amino)­naphthalene, L00313: J. Org. Chem., 61, 3883 (1996).

Dehydration of N-monosubstituted formamides to isocyanides: Angew. Chem. Int. Ed., 16, 259 (1977).

Formation of nitriles from oximes Synthesis, 1037 (1986); or carboxamides: Tetrahedron Lett., 27, 2203 (1986).

See also Triphosgene, A14932, and Oxalyl­ chloride, A18012.

Lezama, J.; Domínguez, R. M.; Chuchani, G. Kinetics of the Gas-Phase Elimination Reaction of Benzyl Chloroformate and Neopentyl Chloroformate. Int. J. Chem. Kinet. 2015, 47 (2), 104-112.

Prousis, K. C.; Markopoulos, J.; Mckee, V.; Igglessi-Markopoulou, O. An efficient synthetic approach towards fully functionalized tetronic acids: the use of 1, 3-dioxolane-2, 4-diones as novel protected-activated synthons of α-hydroxy acids. Tetrahedron 2015, 71 (45), 8637-8648.

Indicaciones de peligro y de precaución del GHS

Indicaciones de peligro (UE): H330-H314-H318

Fatal if inhaled. Causes severe skin burns and eye damage. Causes serious eye damage.

Indicaciones de precaución: P280-P303+P361+P353-P305+P351+P338-P304+P340-P310

Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician.

Otras referencias

Merck
14,3334
Beilstein
970225
Clase de peligro
6.1
Grupo de embalaje
I
Código de tarifa arancelaria unificado
2915.90
TSCA
Yes
RTECS
LQ7350000

Recomendado

Visto recientemente

Productos químicos

Ciencias de la vida

Metales & materiales

Catalizadores

Análisis y material de laboratorio