CIS-1,5-DIMETHYLBICYCLO[3.3.0]OCTANE-3,7-DIONE

CIS-1,5-DIMETHYLBICYCLO[3.3.0]OCTANE-3,7-DIONE - Names and Identifiers

Name	cis-tetrahydro-3a,6a-dimethylpentalene-2,5(1H,3H)-dione
Synonyms	3A,6A-DIMETHYLPERHYDROPENTALENE-2,5-DIONE 1β,5β-Dimethylbicyclo[3.3.0]octane-3,7-dione CIS-1,5-DIMETHYLBICYCLO[3.3.0]OCTANE-3,7-DIONE 3aβ,6aβ-Dimethyltetrahydropentalene-2,5(1H,4H)-dione (3aβ,6aβ)-3a,6a-Dimethyloctahydropentalene-2,5-dione cis-tetrahydro-3a,6a-dimethylpentalene-2,5(1H,3H)-dione rel-(3aR,6aR)-3a,6a-diMethyl-octahydropentalene-2,5-dione 3a,4,6,6a-Tetrahydro-3aα,6aα-dimethyl-2,5(1H,3H)-pentalenedione
CAS	21170-10-5
EINECS	244-255-8
InChI	InChI=1/C10H14O2/c1-9-3-7(11)5-10(9,2)6-8(12)4-9/h3-6H2,1-2H3

CIS-1,5-DIMETHYLBICYCLO[3.3.0]OCTANE-3,7-DIONE - Physico-chemical Properties

Molecular Formula	C10H14O2
Molar Mass	166.22
Density	1.0060 (rough estimate)
Melting Point	228-230°C(lit.)
Boling Point	254.44°C (rough estimate)
Flash Point	95°C
Vapor Presure	0.0145mmHg at 25°C
Storage Condition	Room Temprature
Refractive Index	1.4930 (estimate)

CIS-1,5-DIMETHYLBICYCLO[3.3.0]OCTANE-3,7-DIONE - Risk and Safety

Hazard Symbols	Xi - Irritant
Safety Description	24/25 - Avoid contact with skin and eyes.
WGK Germany	3
Hazard Note	Irritant

CIS-1,5-DIMETHYLBICYCLO[3.3.0]OCTANE-3,7-DIONE - Introduction

cis-tetrahydro-3a,6a-dimethylpentalene-2,5(1H,3H)-dione is a spirocyclic compound with the chemical formula C10H14O2. Its properties are as follows:

1. Appearance: cis-tetrahydro-3a,6a-dimethylpentalene-2,5(1H,3H)-dione is a colorless to light yellow crystalline solid.

2. Melting Point: its melting point is 95-98 degrees Celsius.

3. Solubility: It is soluble in some organic solvents, such as benzene, ethanol and dichloromethane. But the solubility in water is low.

cis-tetrahydro-3a,6a-dimethylpentalene-2,5(1H,3H)-dione has relatively few uses, but it can be used as an intermediate in organic synthesis. It can be used to synthesize structural analogs of some natural products.

cis-tetrahydro-3a,6a-dimethylpentalene-2,5(1H,3H)-dione can be prepared by multi-step synthesis. A common method is to start with cyclopentadiene and undergo methylation, ketonization and other steps.

Regarding safety information, because of its fewer uses, there are fewer specific data about its safety. However, as a chemical substance, proper laboratory procedures should be followed when handling or using it, and necessary safety measures should be taken, such as wearing appropriate personal protective equipment. If the substance needs to be used, it is recommended to read the safety data sheet of the compound carefully for specific safe operation guidelines and precautions.

Last Update：2024-04-10 22:29:15