1. A method for producing an organolithium compound, which comprises the step of reacting an aromatic compound or a halogenated unsaturated aliphatic compound and a lithiating agent at a temperature of \u221240\xb0 C. to 40\xb0 C. in the presence of a coordinating compound represented by formula (2):
wherein,
L2a represents -O \u2014,
R11 represents hydrogen atom or a C1-6 alkyl group,
L1a represents \u2014OR12 or \u2014N(R13)R14,
L3a represents \u2014OR121 or \u2014N(R131)R141,
R12 and R121 each independently represents a C1-6 alkyl group,
R13 and R131 each independently represents a methyl group, an ethyl group, or an n-propyl group,
R14 and R141 each independently represents a C1-6 alkyl group (provided that, when L2a is \u2014O\u2014 and L1a is \u2014OR12, L3a is \u2014N(R131)R141 and, when L2a is \u2014O\u2014 and L3a is \u2014OR121, L1a is \u2014N(R13)R14),
n1a and n2a each independently represents an integer of 1 to 3,
R1a, R2a, R3a, R4a, R5a, R6a, R7a, and R8a each independently represents a hydrogen atom, a C1-6 alkyl group, or a phenyl group, and
a ring may be formed between (R1a or R2a) and (R3a or R4a) or between (R5a or R6a) and (R7a or R8a).
2. The method for producing an organolithium compound according to claim 1, wherein the aromatic compound is reacted with the lithiating agent in the above step.
3. The method for producing an organolithium compound according to claim 2, wherein the aromatic compound and the lithiating agent are subjected to a lithiation reaction by deprotonation in the above step.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An image processing apparatus comprising:
an image processing unit;
a processing unit that performs predetermined processing under the control of the information processing unit;
a reading unit that performs an operation of reading authentication information at intervals of a predetermined time under the control of the information processing unit;
an authentication unit that authenticates a user based on the authentication information read by the reading unit under the control of the information processing unit;
a permission unit that permits the predetermined processing to be performed by the processing unit on the condition that the authentication is completed by the authentication unit; and
a change unit that changes the time interval for the reading unit to perform the reading operation in accordance with the status of processing to be executed.
2. The image processing apparatus according to claim 1, wherein
the change unit changes the time interval to a long interval when the permission unit permits the predetermined processing to be performed by the processing unit compared with the case where the permission unit does not permit the predetermined processing.
3. The image processing apparatus according to claim 1, further comprising:
an acceptance unit that accepts various kinds of operations,
wherein the change unit changes the time interval to a long interval when the processing caused by the operation accepted by the acceptance unit is performed by the processing unit compared with the case where the processing not caused by the operation is performed by the processing unit.
4. The image processing apparatus according to claim 1, wherein
the change unit changes the time interval to a long interval until the processing performed by the processing unit is completed or the authentication unit cannot authenticate the user based on the authentication information after the reading unit reads the authentication information compared with the other case.
5. An image processing control method comprising:
performing predetermined processing under the control of an information processing unit;
performing an operation of reading authentication information at intervals of a predetermined time under the control of the information processing unit;
authenticating a user based on the authentication information read under the control of the information processing unit;
permitting the predetermined processing to be performed on the condition that the authenticating is completed; and
changing the time interval to perform the reading operation in accordance with the status of processing to be executed.
6. A computer readable medium storing a program causing a computer to execute a process for image processing control, the process comprising:
performing predetermined processing under the control of an information processing unit;
performing an operation of reading authentication information at intervals of a predetermined time under the control of the information processing unit;
authenticating a user based on the authentication information read under the control of the information processing unit;
permitting the predetermined processing to be performed on the condition that the authenticating is completed; and
changing the time interval to perform the reading operation in accordance with the status of processing to be executed.