43083-12-1 Usage
Chemical Properties
Clear colorless to slightly yellow liquid
Uses
Different sources of media describe the Uses of 43083-12-1 differently. You can refer to the following data:
1. Trimethyl orthobutyrate has been used in the preparation of:5-acetamido-9-O-butyroyl-3,5-dideoxy-D-glycero-2-nonulo pyranosonic acid9-O-butyroyl-3,5-dideoxy-5-glycoloylamido-D-glycero-2-nonulo pyranosonic acid
2. Trimethyl orthobutyrate can be used for:Acylation at OH-9 of N-acetylneuraminic acid and N-glycoloylneuraminic acid to give the corresponding 9-O-acylated derivatives.Conversion of 2-amino-N-(1-H-benzimidazol-2-yl)benzamide to 2-propyl-3-benzimidazolyl-4(3H)-quinazolinone.Preparation of 2-propyl substituted benzimidazoles from 1,2-benzenediamines.It can also be used in the total synthesis of dl-camptothecin, Olmesartan Medoxomil, DE and CDE ring analogs of camptothecin, and homologs of 1,25-dihydroxyvitamin D3.
General Description
Kinetics and mechanism of gas-phase elimination of trimethyl orthobutyrate has been examined over the temperature range of 310-369°C and pressure range of 50-130Torr.
Check Digit Verification of cas no
The CAS Registry Mumber 43083-12-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,3,0,8 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 43083-12:
(7*4)+(6*3)+(5*0)+(4*8)+(3*3)+(2*1)+(1*2)=91
91 % 10 = 1
So 43083-12-1 is a valid CAS Registry Number.
InChI:InChI=1/C7H16O3/c1-5-6-7(8-2,9-3)10-4/h5-6H2,1-4H3
43083-12-1Relevant articles and documents
Process for preparation of adjacently disubstituted ketones
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, (2008/06/13)
A novel 7-hydroxyprostaglandin E1, or a stereoisomer thereof, or a protected derivative thereof, having the following formula: STR1 wherein R8 represents H, CH3 or C2 H5, R9 represents H or CH3, R10 and R11 are identical or different, and each represents H, tetrahydropyranyl or t-butyldimethylsilyl. Also provided is a process for producing an adjacently disubstituted ketone including the above compounds, i.e. 7-oxoprostaglandin, etc. which comprises reacting an α,β-unsaturated carbonyl compound with a cuprous salt and an organolithium compound in an aprotic inert organic medium in the presence of trialkylphosphine, the amounts of said cuprous salt and said organolithium compound being substantially equimolar, and reacting the product with a protected acetal derivative of an organic carbonyl compound or an aldehyde in the presence of a Lewis acid, if necessary, followed by reacting the product with a proton donor.